20780396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57089}}^1$

素因数の和:57113

約数の個数: 24

約数和(自身を含む): 44758560

約数和(自身を除く): 23978164

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57089, 114178, 228356, 399623, 742157, 799246, 1484314, 1598492, 2968628, 5195099, 10390198, 20780396]

約数ペア:

[(1, 20780396), (2, 10390198), (4, 5195099), (7, 2968628), (13, 1598492), (14, 1484314), (26, 799246), (28, 742157), (52, 399623), (91, 228356), (182, 114178), (364, 57089)]