18663890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{14033}}^1$

素因数の和:14066

約数の個数: 32

約数和(自身を含む): 40417920

約数和(自身を除く): 21754030

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 14033, 28066, 70165, 98231, 140330, 196462, 266627, 491155, 533254, 982310, 1333135, 1866389, 2666270, 3732778, 9331945, 18663890]

約数ペア:

[(1, 18663890), (2, 9331945), (5, 3732778), (7, 2666270), (10, 1866389), (14, 1333135), (19, 982310), (35, 533254), (38, 491155), (70, 266627), (95, 196462), (133, 140330), (190, 98231), (266, 70165), (665, 28066), (1330, 14033)]