638629953

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{442571}}^1$

素因数の和:442624

約数の個数: 16

約数和(自身を含む): 941793216

約数和(自身を除く): 303163263

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 442571, 1327713, 5753423, 16375127, 17260269, 49125381, 212876651, 638629953]

約数ペア:

[(1, 638629953), (3, 212876651), (13, 49125381), (37, 17260269), (39, 16375127), (111, 5753423), (481, 1327713), (1443, 442571)]