20747478

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 42550272

約数和(自身を除く): 21802794

約数列:

[1, 2, 3, 6, 71, 113, 142, 213, 226, 339, 426, 431, 678, 862, 1293, 2586, 8023, 16046, 24069, 30601, 48138, 48703, 61202, 91803, 97406, 146109, 183606, 292218, 3457913, 6915826, 10373739, 20747478]

約数ペア:

[(1, 20747478), (2, 10373739), (3, 6915826), (6, 3457913), (71, 292218), (113, 183606), (142, 146109), (213, 97406), (226, 91803), (339, 61202), (426, 48703), (431, 48138), (678, 30601), (862, 24069), (1293, 16046), (2586, 8023)]