21087636

素因数分解:

$2^2\times 3^1\times {\mathrm{163}}^1\times {\mathrm{10781}}^1$

素因数の和:10951

約数の個数: 24

約数和(自身を含む): 49510944

約数和(自身を除く): 28423308

約数列:

[1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 1956, 10781, 21562, 32343, 43124, 64686, 129372, 1757303, 3514606, 5271909, 7029212, 10543818, 21087636]

約数ペア:

[(1, 21087636), (2, 10543818), (3, 7029212), (4, 5271909), (6, 3514606), (12, 1757303), (163, 129372), (326, 64686), (489, 43124), (652, 32343), (978, 21562), (1956, 10781)]