21294256

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2339}}^1$

素因数の和:2916

約数の個数: 20

約数和(自身を含む): 41347800

約数和(自身を除く): 20053544

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2276, 2339, 4552, 4678, 9104, 9356, 18712, 37424, 1330891, 2661782, 5323564, 10647128, 21294256]

約数ペア:

[(1, 21294256), (2, 10647128), (4, 5323564), (8, 2661782), (16, 1330891), (569, 37424), (1138, 18712), (2276, 9356), (2339, 9104), (4552, 4678)]