18680718

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1861}}^1$

素因数の和:2112

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 24219762

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 239, 478, 717, 1434, 1673, 1861, 3346, 3722, 5019, 5583, 10038, 11166, 13027, 26054, 39081, 78162, 444779, 889558, 1334337, 2668674, 3113453, 6226906, 9340359, 18680718]

約数ペア:

[(1, 18680718), (2, 9340359), (3, 6226906), (6, 3113453), (7, 2668674), (14, 1334337), (21, 889558), (42, 444779), (239, 78162), (478, 39081), (717, 26054), (1434, 13027), (1673, 11166), (1861, 10038), (3346, 5583), (3722, 5019)]