21026798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 35683200

約数和(自身を除く): 14656402

約数列:

[1, 2, 13, 26, 29, 58, 79, 158, 353, 377, 706, 754, 1027, 2054, 2291, 4582, 4589, 9178, 10237, 20474, 27887, 29783, 55774, 59566, 133081, 266162, 362531, 725062, 808723, 1617446, 10513399, 21026798]

約数ペア:

[(1, 21026798), (2, 10513399), (13, 1617446), (26, 808723), (29, 725062), (58, 362531), (79, 266162), (158, 133081), (353, 59566), (377, 55774), (706, 29783), (754, 27887), (1027, 20474), (2054, 10237), (2291, 9178), (4582, 4589)]