21622280

素因数分解:

$2^3\times 5^1\times {\mathrm{540557}}^1$

素因数の和:540568

約数の個数: 16

約数和(自身を含む): 48650220

約数和(自身を除く): 27027940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540557, 1081114, 2162228, 2702785, 4324456, 5405570, 10811140, 21622280]

約数ペア:

[(1, 21622280), (2, 10811140), (4, 5405570), (5, 4324456), (8, 2702785), (10, 2162228), (20, 1081114), (40, 540557)]