981646

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:327

約数の個数: 16

約数和(自身を含む): 1548288

約数和(自身を除く): 566642

約数列:

[1, 2, 31, 62, 71, 142, 223, 446, 2201, 4402, 6913, 13826, 15833, 31666, 490823, 981646]

約数ペア:

[(1, 981646), (2, 490823), (31, 31666), (62, 15833), (71, 13826), (142, 6913), (223, 4402), (446, 2201)]