21258711

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1733}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 32460480

約数和(自身を除く): 11201769

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1733, 4089, 5199, 12267, 15597, 50257, 81451, 150771, 244353, 452313, 733059, 2362079, 7086237, 21258711]

約数ペア:

[(1, 21258711), (3, 7086237), (9, 2362079), (29, 733059), (47, 452313), (87, 244353), (141, 150771), (261, 81451), (423, 50257), (1363, 15597), (1733, 12267), (4089, 5199)]