21269963

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 5825077

約数列:

[1, 11, 13, 23, 29, 143, 223, 253, 299, 319, 377, 667, 2453, 2899, 3289, 4147, 5129, 6467, 7337, 8671, 31889, 56419, 66677, 71137, 84071, 95381, 148741, 733447, 924781, 1636151, 1933633, 21269963]

約数ペア:

[(1, 21269963), (11, 1933633), (13, 1636151), (23, 924781), (29, 733447), (143, 148741), (223, 95381), (253, 84071), (299, 71137), (319, 66677), (377, 56419), (667, 31889), (2453, 8671), (2899, 7337), (3289, 6467), (4147, 5129)]