21708895

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 29461536

約数和(自身を除く): 7752641

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1117, 1495, 3887, 5585, 14521, 19435, 25691, 72605, 128455, 188773, 333983, 943865, 1669915, 4341779, 21708895]

約数ペア:

[(1, 21708895), (5, 4341779), (13, 1669915), (23, 943865), (65, 333983), (115, 188773), (169, 128455), (299, 72605), (845, 25691), (1117, 19435), (1495, 14521), (3887, 5585)]