31115289

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 14043111

約数列:

[1, 3, 29, 31, 83, 87, 93, 139, 249, 417, 899, 2407, 2573, 2697, 4031, 4309, 7221, 7719, 11537, 12093, 12927, 34611, 74617, 124961, 223851, 334573, 357647, 374883, 1003719, 1072941, 10371763, 31115289]

約数ペア:

[(1, 31115289), (3, 10371763), (29, 1072941), (31, 1003719), (83, 374883), (87, 357647), (93, 334573), (139, 223851), (249, 124961), (417, 74617), (899, 34611), (2407, 12927), (2573, 12093), (2697, 11537), (4031, 7719), (4309, 7221)]