21153270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 37944330

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 37, 38, 51, 57, 59, 74, 85, 95, 102, 111, 114, 118, 170, 177, 185, 190, 222, 255, 285, 295, 323, 354, 370, 510, 555, 570, 590, 629, 646, 703, 885, 969, 1003, 1110, 1121, 1258, 1406, 1615, 1770, 1887, 1938, 2006, 2109, 2183, 2242, 3009, 3145, 3230, 3363, 3515, 3774, 4218, 4366, 4845, 5015, 5605, 6018, 6290, 6549, 6726, 7030, 9435, 9690, 10030, 10545, 10915, 11210, 11951, 13098, 15045, 16815, 18870, 19057, 21090, 21830, 23902, 30090, 32745, 33630, 35853, 37111, 38114, 41477, 57171, 59755, 65490, 71706, 74222, 82954, 95285, 111333, 114342, 119510, 124431, 179265, 185555, 190570, 207385, 222666, 248862, 285855, 358530, 371110, 414770, 556665, 571710, 622155, 705109, 1113330, 1244310, 1410218, 2115327, 3525545, 4230654, 7051090, 10576635, 21153270]

約数ペア:

[(1, 21153270), (2, 10576635), (3, 7051090), (5, 4230654), (6, 3525545), (10, 2115327), (15, 1410218), (17, 1244310), (19, 1113330), (30, 705109), (34, 622155), (37, 571710), (38, 556665), (51, 414770), (57, 371110), (59, 358530), (74, 285855), (85, 248862), (95, 222666), (102, 207385), (111, 190570), (114, 185555), (118, 179265), (170, 124431), (177, 119510), (185, 114342), (190, 111333), (222, 95285), (255, 82954), (285, 74222), (295, 71706), (323, 65490), (354, 59755), (370, 57171), (510, 41477), (555, 38114), (570, 37111), (590, 35853), (629, 33630), (646, 32745), (703, 30090), (885, 23902), (969, 21830), (1003, 21090), (1110, 19057), (1121, 18870), (1258, 16815), (1406, 15045), (1615, 13098), (1770, 11951), (1887, 11210), (1938, 10915), (2006, 10545), (2109, 10030), (2183, 9690), (2242, 9435), (3009, 7030), (3145, 6726), (3230, 6549), (3363, 6290), (3515, 6018), (3774, 5605), (4218, 5015), (4366, 4845)]