18687886

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{839}}^1$

素因数の和:928

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 15019634

約数列:

[1, 2, 7, 14, 37, 43, 74, 86, 259, 301, 518, 602, 839, 1591, 1678, 3182, 5873, 11137, 11746, 22274, 31043, 36077, 62086, 72154, 217301, 252539, 434602, 505078, 1334849, 2669698, 9343943, 18687886]

約数ペア:

[(1, 18687886), (2, 9343943), (7, 2669698), (14, 1334849), (37, 505078), (43, 434602), (74, 252539), (86, 217301), (259, 72154), (301, 62086), (518, 36077), (602, 31043), (839, 22274), (1591, 11746), (1678, 11137), (3182, 5873)]