20169681

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 31825920

約数和(自身を除く): 11656239

約数列:

[1, 3, 7, 21, 59, 73, 177, 219, 223, 413, 511, 669, 1239, 1533, 1561, 4307, 4683, 12921, 13157, 16279, 30149, 39471, 48837, 90447, 92099, 113953, 276297, 341859, 960461, 2881383, 6723227, 20169681]

約数ペア:

[(1, 20169681), (3, 6723227), (7, 2881383), (21, 960461), (59, 341859), (73, 276297), (177, 113953), (219, 92099), (223, 90447), (413, 48837), (511, 39471), (669, 30149), (1239, 16279), (1533, 13157), (1561, 12921), (4307, 4683)]