19980459849

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{493747}}^1$

素因数の和:493845

約数の個数: 32

約数和(自身を含む): 31852670976

約数和(自身を除く): 11872211127

約数列:

[1, 3, 7, 21, 41, 47, 123, 141, 287, 329, 861, 987, 1927, 5781, 13489, 40467, 493747, 1481241, 3456229, 10368687, 20243627, 23206109, 60730881, 69618327, 141705389, 162442763, 425116167, 487328289, 951450469, 2854351407, 6660153283, 19980459849]

約数ペア:

[(1, 19980459849), (3, 6660153283), (7, 2854351407), (21, 951450469), (41, 487328289), (47, 425116167), (123, 162442763), (141, 141705389), (287, 69618327), (329, 60730881), (861, 23206109), (987, 20243627), (1927, 10368687), (5781, 3456229), (13489, 1481241), (40467, 493747)]