638042493

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{316961}}^1$

素因数の和:317036

約数の個数: 16

約数和(自身を含む): 943278912

約数和(自身を除く): 305236419

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 316961, 950883, 3486571, 10459713, 19334621, 58003863, 212680831, 638042493]

約数ペア:

[(1, 638042493), (3, 212680831), (11, 58003863), (33, 19334621), (61, 10459713), (183, 3486571), (671, 950883), (2013, 316961)]