19984654

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 32970240

約数和(自身を除く): 12985586

約数列:

[1, 2, 23, 29, 46, 58, 71, 142, 211, 422, 667, 1334, 1633, 2059, 3266, 4118, 4853, 6119, 9706, 12238, 14981, 29962, 47357, 94714, 140737, 281474, 344563, 434449, 689126, 868898, 9992327, 19984654]

約数ペア:

[(1, 19984654), (2, 9992327), (23, 868898), (29, 689126), (46, 434449), (58, 344563), (71, 281474), (142, 140737), (211, 94714), (422, 47357), (667, 29962), (1334, 14981), (1633, 12238), (2059, 9706), (3266, 6119), (4118, 4853)]