21087205

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{6323}}^1$

素因数の和:6380

約数の個数: 16

約数和(自身を含む): 27319680

約数和(自身を除く): 6232475

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 6323, 31615, 145429, 183367, 727145, 916835, 4217441, 21087205]

約数ペア:

[(1, 21087205), (5, 4217441), (23, 916835), (29, 727145), (115, 183367), (145, 145429), (667, 31615), (3335, 6323)]