21567445

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 28094976

約数和(自身を除く): 6527531

約数列:

[1, 5, 23, 29, 115, 145, 223, 667, 841, 1115, 3335, 4205, 5129, 6467, 19343, 25645, 32335, 96715, 148741, 187543, 743705, 937715, 4313489, 21567445]

約数ペア:

[(1, 21567445), (5, 4313489), (23, 937715), (29, 743705), (115, 187543), (145, 148741), (223, 96715), (667, 32335), (841, 25645), (1115, 19343), (3335, 6467), (4205, 5129)]