66437721

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4729}}^1$

素因数の和:4965

約数の個数: 24

約数和(自身を含む): 110190080

約数和(自身を除く): 43752359

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 1561, 2007, 4683, 4729, 14049, 14187, 33103, 42561, 99309, 297927, 1054567, 3163701, 7381969, 9491103, 22145907, 66437721]

約数ペア:

[(1, 66437721), (3, 22145907), (7, 9491103), (9, 7381969), (21, 3163701), (63, 1054567), (223, 297927), (669, 99309), (1561, 42561), (2007, 33103), (4683, 14187), (4729, 14049)]