21000427898

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{528419}}^1$

素因数の和:529093

約数の個数: 16

約数和(自身を含む): 32567581440

約数和(自身を除く): 11567153542

約数列:

[1, 2, 31, 62, 641, 1282, 19871, 39742, 528419, 1056838, 16380989, 32761978, 338716579, 677433158, 10500213949, 21000427898]

約数ペア:

[(1, 21000427898), (2, 10500213949), (31, 677433158), (62, 338716579), (641, 32761978), (1282, 16380989), (19871, 1056838), (39742, 528419)]