638974779

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{53881}}^1$

素因数の和:54010

約数の個数: 16

約数和(自身を含む): 879354240

約数和(自身を除く): 240379461

約数列:

[1, 3, 59, 67, 177, 201, 3953, 11859, 53881, 161643, 3178979, 3610027, 9536937, 10830081, 212991593, 638974779]

約数ペア:

[(1, 638974779), (3, 212991593), (59, 10830081), (67, 9536937), (177, 3610027), (201, 3178979), (3953, 161643), (11859, 53881)]