20722443

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4861}}^1$

素因数の和:4907

約数の個数: 24

約数和(自身を含む): 33256080

約数和(自身を除く): 12533637

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 4861, 14583, 34027, 102081, 140969, 238189, 422907, 714567, 986783, 2960349, 6907481, 20722443]

約数ペア:

[(1, 20722443), (3, 6907481), (7, 2960349), (21, 986783), (29, 714567), (49, 422907), (87, 238189), (147, 140969), (203, 102081), (609, 34027), (1421, 14583), (4263, 4861)]