21591492

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138407}}^1$

素因数の和:138427

約数の個数: 24

約数和(自身を含む): 54255936

約数和(自身を除く): 32664444

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138407, 276814, 415221, 553628, 830442, 1660884, 1799291, 3598582, 5397873, 7197164, 10795746, 21591492]

約数ペア:

[(1, 21591492), (2, 10795746), (3, 7197164), (4, 5397873), (6, 3598582), (12, 1799291), (13, 1660884), (26, 830442), (39, 553628), (52, 415221), (78, 276814), (156, 138407)]