21646833

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 33116160

約数和(自身を除く): 11469327

約数列:

[1, 3, 13, 19, 39, 57, 131, 223, 247, 393, 669, 741, 1703, 2489, 2899, 4237, 5109, 7467, 8697, 12711, 29213, 32357, 55081, 87639, 97071, 165243, 379769, 555047, 1139307, 1665141, 7215611, 21646833]

約数ペア:

[(1, 21646833), (3, 7215611), (13, 1665141), (19, 1139307), (39, 555047), (57, 379769), (131, 165243), (223, 97071), (247, 87639), (393, 55081), (669, 32357), (741, 29213), (1703, 12711), (2489, 8697), (2899, 7467), (4237, 5109)]