20327788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1753}}^1$

素因数の和:1993

約数の個数: 24

約数和(自身を含む): 38503808

約数和(自身を除く): 18176020

約数列:

[1, 2, 4, 13, 26, 52, 223, 446, 892, 1753, 2899, 3506, 5798, 7012, 11596, 22789, 45578, 91156, 390919, 781838, 1563676, 5081947, 10163894, 20327788]

約数ペア:

[(1, 20327788), (2, 10163894), (4, 5081947), (13, 1563676), (26, 781838), (52, 390919), (223, 91156), (446, 45578), (892, 22789), (1753, 11596), (2899, 7012), (3506, 5798)]