21117356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{1789}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 39995760

約数和(自身を除く): 18878404

約数列:

[1, 2, 4, 13, 26, 52, 227, 454, 908, 1789, 2951, 3578, 5902, 7156, 11804, 23257, 46514, 93028, 406103, 812206, 1624412, 5279339, 10558678, 21117356]

約数ペア:

[(1, 21117356), (2, 10558678), (4, 5279339), (13, 1624412), (26, 812206), (52, 406103), (227, 93028), (454, 46514), (908, 23257), (1789, 11804), (2951, 7156), (3578, 5902)]