21103069

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 24911208

約数和(自身を除く): 3808139

約数列:

[1, 13, 17, 41, 137, 221, 289, 533, 697, 1781, 2329, 3757, 5617, 9061, 11849, 30277, 39593, 73021, 95489, 154037, 514709, 1241357, 1623313, 21103069]

約数ペア:

[(1, 21103069), (13, 1623313), (17, 1241357), (41, 514709), (137, 154037), (221, 95489), (289, 73021), (533, 39593), (697, 30277), (1781, 11849), (2329, 9061), (3757, 5617)]