20780556

素因数分解:

$2^2\times 3^1\times {\mathrm{557}}^1\times {\mathrm{3109}}^1$

素因数の和:3673

約数の個数: 24

約数和(自身を含む): 48590640

約数和(自身を除く): 27810084

約数列:

[1, 2, 3, 4, 6, 12, 557, 1114, 1671, 2228, 3109, 3342, 6218, 6684, 9327, 12436, 18654, 37308, 1731713, 3463426, 5195139, 6926852, 10390278, 20780556]

約数ペア:

[(1, 20780556), (2, 10390278), (3, 6926852), (4, 5195139), (6, 3463426), (12, 1731713), (557, 37308), (1114, 18654), (1671, 12436), (2228, 9327), (3109, 6684), (3342, 6218)]