20687642

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{881}}^1$

素因数の和:1141

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 11064358

約数列:

[1, 2, 59, 118, 199, 398, 881, 1762, 11741, 23482, 51979, 103958, 175319, 350638, 10343821, 20687642]

約数ペア:

[(1, 20687642), (2, 10343821), (59, 350638), (118, 175319), (199, 103958), (398, 51979), (881, 23482), (1762, 11741)]