21218238

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28751}}^1$

素因数の和:28800

約数の個数: 24

約数和(自身を含む): 47095776

約数和(自身を除く): 25877538

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28751, 57502, 86253, 172506, 258759, 517518, 1178791, 2357582, 3536373, 7072746, 10609119, 21218238]

約数ペア:

[(1, 21218238), (2, 10609119), (3, 7072746), (6, 3536373), (9, 2357582), (18, 1178791), (41, 517518), (82, 258759), (123, 172506), (246, 86253), (369, 57502), (738, 28751)]