20699289

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:502

約数の個数: 36

約数和(自身を含む): 33496320

約数和(自身を除く): 12797031

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 169, 279, 403, 439, 507, 1209, 1317, 1521, 3627, 3951, 5239, 5707, 13609, 15717, 17121, 40827, 47151, 51363, 74191, 122481, 176917, 222573, 530751, 667719, 1592253, 2299921, 6899763, 20699289]

約数ペア:

[(1, 20699289), (3, 6899763), (9, 2299921), (13, 1592253), (31, 667719), (39, 530751), (93, 222573), (117, 176917), (169, 122481), (279, 74191), (403, 51363), (439, 47151), (507, 40827), (1209, 17121), (1317, 15717), (1521, 13609), (3627, 5707), (3951, 5239)]