21748312

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{719}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 43200000

約数和(自身を除く): 21451688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 199, 398, 719, 796, 1438, 1592, 2876, 3781, 5752, 7562, 13661, 15124, 27322, 30248, 54644, 109288, 143081, 286162, 572324, 1144648, 2718539, 5437078, 10874156, 21748312]

約数ペア:

[(1, 21748312), (2, 10874156), (4, 5437078), (8, 2718539), (19, 1144648), (38, 572324), (76, 286162), (152, 143081), (199, 109288), (398, 54644), (719, 30248), (796, 27322), (1438, 15124), (1592, 13661), (2876, 7562), (3781, 5752)]