640620297

素因数分解:

$3^2\times {\mathrm{503}}^1\times {\mathrm{141511}}^1$

素因数の和:142020

約数の個数: 12

約数和(自身を含む): 927186624

約数和(自身を除く): 286566327

約数列:

[1, 3, 9, 503, 1509, 4527, 141511, 424533, 1273599, 71180033, 213540099, 640620297]

約数ペア:

[(1, 640620297), (3, 213540099), (9, 71180033), (503, 1273599), (1509, 424533), (4527, 141511)]