87920649

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{617}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 129572352

約数和(自身を除く): 41651703

約数列:

[1, 3, 9, 71, 213, 223, 617, 639, 669, 1851, 2007, 5553, 15833, 43807, 47499, 131421, 137591, 142497, 394263, 412773, 1238319, 9768961, 29306883, 87920649]

約数ペア:

[(1, 87920649), (3, 29306883), (9, 9768961), (71, 1238319), (213, 412773), (223, 394263), (617, 142497), (639, 137591), (669, 131421), (1851, 47499), (2007, 43807), (5553, 15833)]