21463928

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157823}}^1$

素因数の和:157846

約数の個数: 16

約数和(自身を含む): 42612480

約数和(自身を除く): 21148552

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157823, 315646, 631292, 1262584, 2682991, 5365982, 10731964, 21463928]

約数ペア:

[(1, 21463928), (2, 10731964), (4, 5365982), (8, 2682991), (17, 1262584), (34, 631292), (68, 315646), (136, 157823)]