215401823

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{4441}}^1$

素因数の和:4515

約数の個数: 24

約数和(自身を含む): 273129696

約数和(自身を除く): 57727873

約数列:

[1, 7, 13, 41, 91, 169, 287, 533, 1183, 3731, 4441, 6929, 31087, 48503, 57733, 182081, 404131, 750529, 1274567, 2367053, 5253703, 16569371, 30771689, 215401823]

約数ペア:

[(1, 215401823), (7, 30771689), (13, 16569371), (41, 5253703), (91, 2367053), (169, 1274567), (287, 750529), (533, 404131), (1183, 182081), (3731, 57733), (4441, 48503), (6929, 31087)]