21959649

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2423}}^1$

素因数の和:2501

約数の個数: 24

約数和(自身を含む): 34032960

約数和(自身を除く): 12073311

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2423, 3021, 7269, 9063, 21807, 46037, 128419, 138111, 385257, 414333, 1155771, 2439961, 7319883, 21959649]

約数ペア:

[(1, 21959649), (3, 7319883), (9, 2439961), (19, 1155771), (53, 414333), (57, 385257), (159, 138111), (171, 128419), (477, 46037), (1007, 21807), (2423, 9063), (3021, 7269)]