209916207

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{2777}}^1$

素因数の和:3047

約数の個数: 24

約数和(自身を含む): 312891696

約数和(自身を除く): 102975489

約数列:

[1, 3, 9, 37, 111, 227, 333, 681, 2043, 2777, 8331, 8399, 24993, 25197, 75591, 102749, 308247, 630379, 924741, 1891137, 5673411, 23324023, 69972069, 209916207]

約数ペア:

[(1, 209916207), (3, 69972069), (9, 23324023), (37, 5673411), (111, 1891137), (227, 924741), (333, 630379), (681, 308247), (2043, 102749), (2777, 75591), (8331, 25197), (8399, 24993)]