20814237

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1223}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 31569408

約数和(自身を除く): 10755171

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1223, 1891, 3669, 5673, 11007, 17019, 37913, 74603, 113739, 223809, 341217, 671427, 2312693, 6938079, 20814237]

約数ペア:

[(1, 20814237), (3, 6938079), (9, 2312693), (31, 671427), (61, 341217), (93, 223809), (183, 113739), (279, 74603), (549, 37913), (1223, 17019), (1891, 11007), (3669, 5673)]