20723404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{10771}}^1$

素因数の和:10825

約数の個数: 24

約数和(自身を含む): 40114928

約数和(自身を除く): 19391524

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 10771, 21542, 43084, 140023, 280046, 398527, 560092, 797054, 1594108, 5180851, 10361702, 20723404]

約数ペア:

[(1, 20723404), (2, 10361702), (4, 5180851), (13, 1594108), (26, 797054), (37, 560092), (52, 398527), (74, 280046), (148, 140023), (481, 43084), (962, 21542), (1924, 10771)]