21058672

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42457}}^1$

素因数の和:42496

約数の個数: 20

約数和(自身を含む): 42118336

約数和(自身を除く): 21059664

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42457, 84914, 169828, 339656, 679312, 1316167, 2632334, 5264668, 10529336, 21058672]

約数ペア:

[(1, 21058672), (2, 10529336), (4, 5264668), (8, 2632334), (16, 1316167), (31, 679312), (62, 339656), (124, 169828), (248, 84914), (496, 42457)]