19945908

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3529}}^1$

素因数の和:3696

約数の個数: 36

約数和(自身を含む): 50754340

約数和(自身を除く): 30808432

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3529, 5652, 7058, 10587, 14116, 21174, 31761, 42348, 63522, 127044, 554053, 1108106, 1662159, 2216212, 3324318, 4986477, 6648636, 9972954, 19945908]

約数ペア:

[(1, 19945908), (2, 9972954), (3, 6648636), (4, 4986477), (6, 3324318), (9, 2216212), (12, 1662159), (18, 1108106), (36, 554053), (157, 127044), (314, 63522), (471, 42348), (628, 31761), (942, 21174), (1413, 14116), (1884, 10587), (2826, 7058), (3529, 5652)]