21324225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21871}}^1$

素因数の和:21897

約数の個数: 24

約数和(自身を含む): 37969792

約数和(自身を除く): 16645567

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21871, 65613, 109355, 284323, 328065, 546775, 852969, 1421615, 1640325, 4264845, 7108075, 21324225]

約数ペア:

[(1, 21324225), (3, 7108075), (5, 4264845), (13, 1640325), (15, 1421615), (25, 852969), (39, 546775), (65, 328065), (75, 284323), (195, 109355), (325, 65613), (975, 21871)]