18990939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 29196288

約数和(自身を除く): 10205349

約数列:

[1, 3, 11, 23, 33, 69, 131, 191, 253, 393, 573, 759, 1441, 2101, 3013, 4323, 4393, 6303, 9039, 13179, 25021, 33143, 48323, 75063, 99429, 144969, 275231, 575483, 825693, 1726449, 6330313, 18990939]

約数ペア:

[(1, 18990939), (3, 6330313), (11, 1726449), (23, 825693), (33, 575483), (69, 275231), (131, 144969), (191, 99429), (253, 75063), (393, 48323), (573, 33143), (759, 25021), (1441, 13179), (2101, 9039), (3013, 6303), (4323, 4393)]