638187867

素因数分解:

$3^2\times {\mathrm{223}}^1\times {\mathrm{379}}^1\times {\mathrm{839}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 929510400

約数和(自身を除く): 291322533

約数列:

[1, 3, 9, 223, 379, 669, 839, 1137, 2007, 2517, 3411, 7551, 84517, 187097, 253551, 317981, 561291, 760653, 953943, 1683873, 2861829, 70909763, 212729289, 638187867]

約数ペア:

[(1, 638187867), (3, 212729289), (9, 70909763), (223, 2861829), (379, 1683873), (669, 953943), (839, 760653), (1137, 561291), (2007, 317981), (2517, 253551), (3411, 187097), (7551, 84517)]