20557732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6481}}^1$

素因数の和:6559

約数の個数: 24

約数和(自身を含む): 39384632

約数和(自身を除く): 18826900

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6481, 12962, 25924, 84253, 168506, 337012, 395341, 790682, 1581364, 5139433, 10278866, 20557732]

約数ペア:

[(1, 20557732), (2, 10278866), (4, 5139433), (13, 1581364), (26, 790682), (52, 395341), (61, 337012), (122, 168506), (244, 84253), (793, 25924), (1586, 12962), (3172, 6481)]