21390556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28597}}^1$

素因数の和:28629

約数の個数: 24

約数和(自身を含む): 43240176

約数和(自身を除く): 21849620

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 28597, 57194, 114388, 314567, 486149, 629134, 972298, 1258268, 1944596, 5347639, 10695278, 21390556]

約数ペア:

[(1, 21390556), (2, 10695278), (4, 5347639), (11, 1944596), (17, 1258268), (22, 972298), (34, 629134), (44, 486149), (68, 314567), (187, 114388), (374, 57194), (748, 28597)]