21372806

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2731}}^1$

素因数の和:2796

約数の個数: 32

約数和(自身を含む): 40389888

約数和(自身を除く): 19017082

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2731, 3913, 5462, 7826, 19117, 35503, 38234, 71006, 117433, 234866, 248521, 497042, 822031, 1526629, 1644062, 3053258, 10686403, 21372806]

約数ペア:

[(1, 21372806), (2, 10686403), (7, 3053258), (13, 1644062), (14, 1526629), (26, 822031), (43, 497042), (86, 248521), (91, 234866), (182, 117433), (301, 71006), (559, 38234), (602, 35503), (1118, 19117), (2731, 7826), (3913, 5462)]