20057219

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:124

約数の個数: 36

約数和(自身を含む): 26946864

約数和(自身を除く): 6889645

約数列:

[1, 7, 13, 23, 37, 49, 91, 161, 259, 299, 481, 637, 851, 1127, 1369, 1813, 2093, 3367, 5957, 9583, 11063, 14651, 17797, 23569, 31487, 41699, 67081, 77441, 124579, 220409, 409331, 542087, 872053, 1542863, 2865317, 20057219]

約数ペア:

[(1, 20057219), (7, 2865317), (13, 1542863), (23, 872053), (37, 542087), (49, 409331), (91, 220409), (161, 124579), (259, 77441), (299, 67081), (481, 41699), (637, 31487), (851, 23569), (1127, 17797), (1369, 14651), (1813, 11063), (2093, 9583), (3367, 5957)]