2161287

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 3335904

約数和(自身を除く): 1174617

約数列:

[1, 3, 9, 23, 53, 69, 159, 197, 207, 477, 591, 1219, 1773, 3657, 4531, 10441, 10971, 13593, 31323, 40779, 93969, 240143, 720429, 2161287]

約数ペア:

[(1, 2161287), (3, 720429), (9, 240143), (23, 93969), (53, 40779), (69, 31323), (159, 13593), (197, 10971), (207, 10441), (477, 4531), (591, 3657), (1219, 1773)]