21086778

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 43056000

約数和(自身を除く): 21969222

約数列:

[1, 2, 3, 6, 103, 149, 206, 229, 298, 309, 447, 458, 618, 687, 894, 1374, 15347, 23587, 30694, 34121, 46041, 47174, 68242, 70761, 92082, 102363, 141522, 204726, 3514463, 7028926, 10543389, 21086778]

約数ペア:

[(1, 21086778), (2, 10543389), (3, 7028926), (6, 3514463), (103, 204726), (149, 141522), (206, 102363), (229, 92082), (298, 70761), (309, 68242), (447, 47174), (458, 46041), (618, 34121), (687, 30694), (894, 23587), (1374, 15347)]