21097544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11933}}^1$

素因数の和:11969

約数の個数: 32

約数和(自身を含む): 45110520

約数和(自身を除く): 24012976

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11933, 23866, 47732, 95464, 155129, 202861, 310258, 405722, 620516, 811444, 1241032, 1622888, 2637193, 5274386, 10548772, 21097544]

約数ペア:

[(1, 21097544), (2, 10548772), (4, 5274386), (8, 2637193), (13, 1622888), (17, 1241032), (26, 811444), (34, 620516), (52, 405722), (68, 310258), (104, 202861), (136, 155129), (221, 95464), (442, 47732), (884, 23866), (1768, 11933)]