21997822

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1721}}^1$

素因数の和:1824

約数の個数: 32

約数和(自身を含む): 41658624

約数和(自身を除く): 19660802

約数列:

[1, 2, 7, 11, 14, 22, 77, 83, 154, 166, 581, 913, 1162, 1721, 1826, 3442, 6391, 12047, 12782, 18931, 24094, 37862, 132517, 142843, 265034, 285686, 999901, 1571273, 1999802, 3142546, 10998911, 21997822]

約数ペア:

[(1, 21997822), (2, 10998911), (7, 3142546), (11, 1999802), (14, 1571273), (22, 999901), (77, 285686), (83, 265034), (154, 142843), (166, 132517), (581, 37862), (913, 24094), (1162, 18931), (1721, 12782), (1826, 12047), (3442, 6391)]