21717190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10391}}^1$

素因数の和:10428

約数の個数: 32

約数和(自身を含む): 44893440

約数和(自身を除く): 23176250

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10391, 20782, 51955, 103910, 114301, 197429, 228602, 394858, 571505, 987145, 1143010, 1974290, 2171719, 4343438, 10858595, 21717190]

約数ペア:

[(1, 21717190), (2, 10858595), (5, 4343438), (10, 2171719), (11, 1974290), (19, 1143010), (22, 987145), (38, 571505), (55, 394858), (95, 228602), (110, 197429), (190, 114301), (209, 103910), (418, 51955), (1045, 20782), (2090, 10391)]