31399342

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 52899840

約数和(自身を除く): 21500498

約数列:

[1, 2, 13, 26, 31, 62, 163, 239, 326, 403, 478, 806, 2119, 3107, 4238, 5053, 6214, 7409, 10106, 14818, 38957, 65689, 77914, 96317, 131378, 192634, 506441, 1012882, 1207667, 2415334, 15699671, 31399342]

約数ペア:

[(1, 31399342), (2, 15699671), (13, 2415334), (26, 1207667), (31, 1012882), (62, 506441), (163, 192634), (239, 131378), (326, 96317), (403, 77914), (478, 65689), (806, 38957), (2119, 14818), (3107, 10106), (4238, 7409), (5053, 6214)]