17731978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{719}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 13372022

約数列:

[1, 2, 11, 19, 22, 38, 59, 118, 209, 418, 649, 719, 1121, 1298, 1438, 2242, 7909, 12331, 13661, 15818, 24662, 27322, 42421, 84842, 150271, 300542, 466631, 805999, 933262, 1611998, 8865989, 17731978]

約数ペア:

[(1, 17731978), (2, 8865989), (11, 1611998), (19, 933262), (22, 805999), (38, 466631), (59, 300542), (118, 150271), (209, 84842), (418, 42421), (649, 27322), (719, 24662), (1121, 15818), (1298, 13661), (1438, 12331), (2242, 7909)]