420508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 846720

約数和(自身を除く): 426212

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 503, 836, 1006, 2012, 5533, 9557, 11066, 19114, 22132, 38228, 105127, 210254, 420508]

約数ペア:

[(1, 420508), (2, 210254), (4, 105127), (11, 38228), (19, 22132), (22, 19114), (38, 11066), (44, 9557), (76, 5533), (209, 2012), (418, 1006), (503, 836)]