20145447

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13903}}^1$

素因数の和:13939

約数の個数: 24

約数和(自身を含む): 34704384

約数和(自身を除く): 14558937

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 13903, 41709, 97321, 125127, 291963, 319769, 875889, 959307, 2238383, 2877921, 6715149, 20145447]

約数ペア:

[(1, 20145447), (3, 6715149), (7, 2877921), (9, 2238383), (21, 959307), (23, 875889), (63, 319769), (69, 291963), (161, 125127), (207, 97321), (483, 41709), (1449, 13903)]