201915919

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 230146848

約数和(自身を除く): 28230929

約数列:

[1, 17, 23, 37, 289, 391, 629, 821, 851, 6647, 10693, 13957, 14467, 18883, 30377, 237269, 245939, 321011, 516409, 698671, 5457187, 8778953, 11877407, 201915919]

約数ペア:

[(1, 201915919), (17, 11877407), (23, 8778953), (37, 5457187), (289, 698671), (391, 516409), (629, 321011), (821, 245939), (851, 237269), (6647, 30377), (10693, 18883), (13957, 14467)]