21831376

素因数分解:

$2^4\times 7^1\times {\mathrm{421}}^1\times {\mathrm{463}}^1$

素因数の和:899

約数の個数: 40

約数和(自身を含む): 48560384

約数和(自身を除く): 26729008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 421, 463, 842, 926, 1684, 1852, 2947, 3241, 3368, 3704, 5894, 6482, 6736, 7408, 11788, 12964, 23576, 25928, 47152, 51856, 194923, 389846, 779692, 1364461, 1559384, 2728922, 3118768, 5457844, 10915688, 21831376]

約数ペア:

[(1, 21831376), (2, 10915688), (4, 5457844), (7, 3118768), (8, 2728922), (14, 1559384), (16, 1364461), (28, 779692), (56, 389846), (112, 194923), (421, 51856), (463, 47152), (842, 25928), (926, 23576), (1684, 12964), (1852, 11788), (2947, 7408), (3241, 6736), (3368, 6482), (3704, 5894)]