20509542

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{18679}}^1$

素因数の和:18748

約数の個数: 24

約数和(自身を含む): 45168240

約数和(自身を除く): 24658698

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 18679, 37358, 56037, 112074, 168111, 336222, 1139419, 2278838, 3418257, 6836514, 10254771, 20509542]

約数ペア:

[(1, 20509542), (2, 10254771), (3, 6836514), (6, 3418257), (9, 2278838), (18, 1139419), (61, 336222), (122, 168111), (183, 112074), (366, 56037), (549, 37358), (1098, 18679)]