21104330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2423}}^1$

素因数の和:2510

約数の個数: 32

約数和(自身を含む): 41537664

約数和(自身を除く): 20433334

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2423, 4355, 4846, 8710, 12115, 24230, 31499, 62998, 157495, 162341, 314990, 324682, 811705, 1623410, 2110433, 4220866, 10552165, 21104330]

約数ペア:

[(1, 21104330), (2, 10552165), (5, 4220866), (10, 2110433), (13, 1623410), (26, 811705), (65, 324682), (67, 314990), (130, 162341), (134, 157495), (335, 62998), (670, 31499), (871, 24230), (1742, 12115), (2423, 8710), (4355, 4846)]