20466667

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:163

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 4370453

約数列:

[1, 13, 19, 41, 43, 47, 247, 533, 559, 611, 779, 817, 893, 1763, 1927, 2021, 10127, 10621, 11609, 22919, 25051, 26273, 33497, 36613, 38399, 82861, 435461, 475969, 499187, 1077193, 1574359, 20466667]

約数ペア:

[(1, 20466667), (13, 1574359), (19, 1077193), (41, 499187), (43, 475969), (47, 435461), (247, 82861), (533, 38399), (559, 36613), (611, 33497), (779, 26273), (817, 25051), (893, 22919), (1763, 11609), (1927, 10621), (2021, 10127)]