18007012

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:496

約数の個数: 36

約数和(自身を含む): 34461364

約数和(自身を除く): 16454352

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 421, 578, 629, 842, 1156, 1258, 1684, 2516, 7157, 10693, 14314, 15577, 21386, 28628, 31154, 42772, 62308, 121669, 243338, 264809, 486676, 529618, 1059236, 4501753, 9003506, 18007012]

約数ペア:

[(1, 18007012), (2, 9003506), (4, 4501753), (17, 1059236), (34, 529618), (37, 486676), (68, 264809), (74, 243338), (148, 121669), (289, 62308), (421, 42772), (578, 31154), (629, 28628), (842, 21386), (1156, 15577), (1258, 14314), (1684, 10693), (2516, 7157)]