21152050

素因数分解:

$2^1\times 5^2\times {\mathrm{433}}^1\times {\mathrm{977}}^1$

素因数の和:1422

約数の個数: 24

約数和(自身を含む): 39474036

約数和(自身を除く): 18321986

約数列:

[1, 2, 5, 10, 25, 50, 433, 866, 977, 1954, 2165, 4330, 4885, 9770, 10825, 21650, 24425, 48850, 423041, 846082, 2115205, 4230410, 10576025, 21152050]

約数ペア:

[(1, 21152050), (2, 10576025), (5, 4230410), (10, 2115205), (25, 846082), (50, 423041), (433, 48850), (866, 24425), (977, 21650), (1954, 10825), (2165, 9770), (4330, 4885)]