31808142

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{24889}}^1$

素因数の和:24968

約数の個数: 24

約数和(自身を含む): 69891120

約数和(自身を除く): 38082978

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 24889, 49778, 74667, 149334, 224001, 448002, 1767119, 3534238, 5301357, 10602714, 15904071, 31808142]

約数ペア:

[(1, 31808142), (2, 15904071), (3, 10602714), (6, 5301357), (9, 3534238), (18, 1767119), (71, 448002), (142, 224001), (213, 149334), (426, 74667), (639, 49778), (1278, 24889)]