20542428

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1423}}^1$

素因数の和:1834

約数の個数: 36

約数和(自身を含む): 52092768

約数和(自身を除く): 31550340

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1423, 1604, 2406, 2846, 3609, 4269, 4812, 5692, 7218, 8538, 12807, 14436, 17076, 25614, 51228, 570623, 1141246, 1711869, 2282492, 3423738, 5135607, 6847476, 10271214, 20542428]

約数ペア:

[(1, 20542428), (2, 10271214), (3, 6847476), (4, 5135607), (6, 3423738), (9, 2282492), (12, 1711869), (18, 1141246), (36, 570623), (401, 51228), (802, 25614), (1203, 17076), (1423, 14436), (1604, 12807), (2406, 8538), (2846, 7218), (3609, 5692), (4269, 4812)]