21259233

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1429}}^1$

素因数の和:1486

約数の個数: 32

約数和(自身を含む): 34320000

約数和(自身を除く): 13060767

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 261, 513, 551, 783, 1429, 1653, 4287, 4959, 12861, 14877, 27151, 38583, 41441, 81453, 124323, 244359, 372969, 733077, 787379, 1118907, 2362137, 7086411, 21259233]

約数ペア:

[(1, 21259233), (3, 7086411), (9, 2362137), (19, 1118907), (27, 787379), (29, 733077), (57, 372969), (87, 244359), (171, 124323), (261, 81453), (513, 41441), (551, 38583), (783, 27151), (1429, 14877), (1653, 12861), (4287, 4959)]