21522248

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1229}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 44280000

約数和(自身を除く): 22757752

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1229, 1592, 2189, 2458, 4378, 4916, 8756, 9832, 13519, 17512, 27038, 54076, 108152, 244571, 489142, 978284, 1956568, 2690281, 5380562, 10761124, 21522248]

約数ペア:

[(1, 21522248), (2, 10761124), (4, 5380562), (8, 2690281), (11, 1956568), (22, 978284), (44, 489142), (88, 244571), (199, 108152), (398, 54076), (796, 27038), (1229, 17512), (1592, 13519), (2189, 9832), (2458, 8756), (4378, 4916)]