21965710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8893}}^1$

素因数の和:8932

約数の個数: 32

約数和(自身を含む): 44825760

約数和(自身を除く): 22860050

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8893, 17786, 44465, 88930, 115609, 168967, 231218, 337934, 578045, 844835, 1156090, 1689670, 2196571, 4393142, 10982855, 21965710]

約数ペア:

[(1, 21965710), (2, 10982855), (5, 4393142), (10, 2196571), (13, 1689670), (19, 1156090), (26, 844835), (38, 578045), (65, 337934), (95, 231218), (130, 168967), (190, 115609), (247, 88930), (494, 44465), (1235, 17786), (2470, 8893)]