15481921

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 20027520

約数和(自身を除く): 4545599

約数列:

[1, 7, 13, 23, 91, 161, 169, 299, 569, 1183, 2093, 3887, 3983, 7397, 13087, 27209, 51779, 91609, 96161, 170131, 673127, 1190917, 2211703, 15481921]

約数ペア:

[(1, 15481921), (7, 2211703), (13, 1190917), (23, 673127), (91, 170131), (161, 96161), (169, 91609), (299, 51779), (569, 27209), (1183, 13087), (2093, 7397), (3887, 3983)]