20897794

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{11597}}^1$

素因数の和:11669

約数の個数: 16

約数和(自身を含む): 33819768

約数和(自身を除く): 12921974

約数列:

[1, 2, 17, 34, 53, 106, 901, 1802, 11597, 23194, 197149, 394298, 614641, 1229282, 10448897, 20897794]

約数ペア:

[(1, 20897794), (2, 10448897), (17, 1229282), (34, 614641), (53, 394298), (106, 197149), (901, 23194), (1802, 11597)]