21043818

素因数分解:

$2^1\times 3^2\times {\mathrm{541}}^1\times {\mathrm{2161}}^1$

素因数の和:2710

約数の個数: 24

約数和(自身を含む): 45700356

約数和(自身を除く): 24656538

約数列:

[1, 2, 3, 6, 9, 18, 541, 1082, 1623, 2161, 3246, 4322, 4869, 6483, 9738, 12966, 19449, 38898, 1169101, 2338202, 3507303, 7014606, 10521909, 21043818]

約数ペア:

[(1, 21043818), (2, 10521909), (3, 7014606), (6, 3507303), (9, 2338202), (18, 1169101), (541, 38898), (1082, 19449), (1623, 12966), (2161, 9738), (3246, 6483), (4322, 4869)]