20827863

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1229}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 34538400

約数和(自身を除く): 13710537

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1229, 1883, 2421, 3687, 5649, 8603, 11061, 16947, 25809, 77427, 330601, 991803, 2314207, 2975409, 6942621, 20827863]

約数ペア:

[(1, 20827863), (3, 6942621), (7, 2975409), (9, 2314207), (21, 991803), (63, 330601), (269, 77427), (807, 25809), (1229, 16947), (1883, 11061), (2421, 8603), (3687, 5649)]