21720252

素因数分解:

$2^2\times 3^1\times {\mathrm{101}}^1\times {\mathrm{17921}}^1$

素因数の和:18029

約数の個数: 24

約数和(自身を含む): 51185232

約数和(自身を除く): 29464980

約数列:

[1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212, 17921, 35842, 53763, 71684, 107526, 215052, 1810021, 3620042, 5430063, 7240084, 10860126, 21720252]

約数ペア:

[(1, 21720252), (2, 10860126), (3, 7240084), (4, 5430063), (6, 3620042), (12, 1810021), (101, 215052), (202, 107526), (303, 71684), (404, 53763), (606, 35842), (1212, 17921)]