21479815

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26683}}^1$

素因数の和:26718

約数の個数: 16

約数和(自身を含む): 30739968

約数和(自身を除く): 9260153

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26683, 133415, 186781, 613709, 933905, 3068545, 4295963, 21479815]

約数ペア:

[(1, 21479815), (5, 4295963), (7, 3068545), (23, 933905), (35, 613709), (115, 186781), (161, 133415), (805, 26683)]