31421286

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2857}}^1$

素因数の和:2925

約数の個数: 48

約数和(自身を含む): 74902464

約数和(自身を除く): 43481178

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1833, 2857, 3666, 5499, 5714, 8571, 10998, 17142, 25713, 37141, 51426, 74282, 111423, 134279, 222846, 268558, 334269, 402837, 668538, 805674, 1208511, 1745627, 2417022, 3491254, 5236881, 10473762, 15710643, 31421286]

約数ペア:

[(1, 31421286), (2, 15710643), (3, 10473762), (6, 5236881), (9, 3491254), (13, 2417022), (18, 1745627), (26, 1208511), (39, 805674), (47, 668538), (78, 402837), (94, 334269), (117, 268558), (141, 222846), (234, 134279), (282, 111423), (423, 74282), (611, 51426), (846, 37141), (1222, 25713), (1833, 17142), (2857, 10998), (3666, 8571), (5499, 5714)]