21385320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:995

約数の個数: 128

約数和(自身を含む): 74183040

約数和(自身を除く): 52797720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 953, 1020, 1122, 1320, 1496, 1870, 1906, 2040, 2244, 2805, 2859, 3740, 3812, 4488, 4765, 5610, 5718, 7480, 7624, 9530, 10483, 11220, 11436, 14295, 16201, 19060, 20966, 22440, 22872, 28590, 31449, 32402, 38120, 41932, 48603, 52415, 57180, 62898, 64804, 81005, 83864, 97206, 104830, 114360, 125796, 129608, 157245, 162010, 178211, 194412, 209660, 243015, 251592, 314490, 324020, 356422, 388824, 419320, 486030, 534633, 628980, 648040, 712844, 891055, 972060, 1069266, 1257960, 1425688, 1782110, 1944120, 2138532, 2673165, 3564220, 4277064, 5346330, 7128440, 10692660, 21385320]

約数ペア:

[(1, 21385320), (2, 10692660), (3, 7128440), (4, 5346330), (5, 4277064), (6, 3564220), (8, 2673165), (10, 2138532), (11, 1944120), (12, 1782110), (15, 1425688), (17, 1257960), (20, 1069266), (22, 972060), (24, 891055), (30, 712844), (33, 648040), (34, 628980), (40, 534633), (44, 486030), (51, 419320), (55, 388824), (60, 356422), (66, 324020), (68, 314490), (85, 251592), (88, 243015), (102, 209660), (110, 194412), (120, 178211), (132, 162010), (136, 157245), (165, 129608), (170, 125796), (187, 114360), (204, 104830), (220, 97206), (255, 83864), (264, 81005), (330, 64804), (340, 62898), (374, 57180), (408, 52415), (440, 48603), (510, 41932), (561, 38120), (660, 32402), (680, 31449), (748, 28590), (935, 22872), (953, 22440), (1020, 20966), (1122, 19060), (1320, 16201), (1496, 14295), (1870, 11436), (1906, 11220), (2040, 10483), (2244, 9530), (2805, 7624), (2859, 7480), (3740, 5718), (3812, 5610), (4488, 4765)]