17889963

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3449}}^1$

素因数の和:3491

約数の個数: 32

約数和(自身を含む): 30912000

約数和(自身を除く): 13022037

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3449, 5187, 10347, 24143, 44837, 65531, 72429, 134511, 196593, 313859, 458717, 851903, 941577, 1376151, 2555709, 5963321, 17889963]

約数ペア:

[(1, 17889963), (3, 5963321), (7, 2555709), (13, 1376151), (19, 941577), (21, 851903), (39, 458717), (57, 313859), (91, 196593), (133, 134511), (247, 72429), (273, 65531), (399, 44837), (741, 24143), (1729, 10347), (3449, 5187)]