21810828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139813}}^1$

素因数の和:139833

約数の個数: 24

約数和(自身を含む): 54807088

約数和(自身を除く): 32996260

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139813, 279626, 419439, 559252, 838878, 1677756, 1817569, 3635138, 5452707, 7270276, 10905414, 21810828]

約数ペア:

[(1, 21810828), (2, 10905414), (3, 7270276), (4, 5452707), (6, 3635138), (12, 1817569), (13, 1677756), (26, 838878), (39, 559252), (52, 419439), (78, 279626), (156, 139813)]