20178662116

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{2728321}}^1$

素因数の和:2728411

約数の個数: 18

約数和(自身を含む): 36152994822

約数和(自身を除く): 15974332706

約数列:

[1, 2, 4, 43, 86, 172, 1849, 3698, 7396, 2728321, 5456642, 10913284, 117317803, 234635606, 469271212, 5044665529, 10089331058, 20178662116]

約数ペア:

[(1, 20178662116), (2, 10089331058), (4, 5044665529), (43, 469271212), (86, 234635606), (172, 117317803), (1849, 10913284), (3698, 5456642), (7396, 2728321)]