21418980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 51737628

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 23, 30, 33, 34, 44, 46, 51, 55, 60, 66, 68, 69, 83, 85, 92, 102, 110, 115, 132, 138, 165, 166, 170, 187, 204, 220, 230, 249, 253, 255, 276, 330, 332, 340, 345, 374, 391, 415, 460, 498, 506, 510, 561, 660, 690, 748, 759, 782, 830, 913, 935, 996, 1012, 1020, 1122, 1173, 1245, 1265, 1380, 1411, 1518, 1564, 1660, 1826, 1870, 1909, 1955, 2244, 2346, 2490, 2530, 2739, 2805, 2822, 3036, 3652, 3740, 3795, 3818, 3910, 4233, 4301, 4565, 4692, 4980, 5060, 5478, 5610, 5644, 5727, 5865, 7055, 7590, 7636, 7820, 8466, 8602, 9130, 9545, 10956, 11220, 11454, 11730, 12903, 13695, 14110, 15180, 15521, 16932, 17204, 18260, 19090, 20999, 21165, 21505, 22908, 23460, 25806, 27390, 28220, 28635, 31042, 32453, 38180, 41998, 42330, 43010, 46563, 51612, 54780, 57270, 62084, 62997, 64515, 64906, 77605, 83996, 84660, 86020, 93126, 97359, 104995, 114540, 125994, 129030, 129812, 155210, 162265, 186252, 194718, 209990, 232815, 251988, 258060, 310420, 314985, 324530, 356983, 389436, 419980, 465630, 486795, 629970, 649060, 713966, 931260, 973590, 1070949, 1259940, 1427932, 1784915, 1947180, 2141898, 3569830, 4283796, 5354745, 7139660, 10709490, 21418980]

約数ペア:

[(1, 21418980), (2, 10709490), (3, 7139660), (4, 5354745), (5, 4283796), (6, 3569830), (10, 2141898), (11, 1947180), (12, 1784915), (15, 1427932), (17, 1259940), (20, 1070949), (22, 973590), (23, 931260), (30, 713966), (33, 649060), (34, 629970), (44, 486795), (46, 465630), (51, 419980), (55, 389436), (60, 356983), (66, 324530), (68, 314985), (69, 310420), (83, 258060), (85, 251988), (92, 232815), (102, 209990), (110, 194718), (115, 186252), (132, 162265), (138, 155210), (165, 129812), (166, 129030), (170, 125994), (187, 114540), (204, 104995), (220, 97359), (230, 93126), (249, 86020), (253, 84660), (255, 83996), (276, 77605), (330, 64906), (332, 64515), (340, 62997), (345, 62084), (374, 57270), (391, 54780), (415, 51612), (460, 46563), (498, 43010), (506, 42330), (510, 41998), (561, 38180), (660, 32453), (690, 31042), (748, 28635), (759, 28220), (782, 27390), (830, 25806), (913, 23460), (935, 22908), (996, 21505), (1012, 21165), (1020, 20999), (1122, 19090), (1173, 18260), (1245, 17204), (1265, 16932), (1380, 15521), (1411, 15180), (1518, 14110), (1564, 13695), (1660, 12903), (1826, 11730), (1870, 11454), (1909, 11220), (1955, 10956), (2244, 9545), (2346, 9130), (2490, 8602), (2530, 8466), (2739, 7820), (2805, 7636), (2822, 7590), (3036, 7055), (3652, 5865), (3740, 5727), (3795, 5644), (3818, 5610), (3910, 5478), (4233, 5060), (4301, 4980), (4565, 4692)]