21704774

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3847}}^1$

素因数の和:3900

約数の個数: 32

約数和(自身を含む): 41373696

約数和(自身を除く): 19668922

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3847, 5642, 7694, 26929, 50011, 53858, 100022, 119257, 238514, 350077, 700154, 834799, 1550341, 1669598, 3100682, 10852387, 21704774]

約数ペア:

[(1, 21704774), (2, 10852387), (7, 3100682), (13, 1669598), (14, 1550341), (26, 834799), (31, 700154), (62, 350077), (91, 238514), (182, 119257), (217, 100022), (403, 53858), (434, 50011), (806, 26929), (2821, 7694), (3847, 5642)]