219981808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{6803}}^1$

素因数の和:6901

約数の個数: 40

約数和(自身を含む): 445471488

約数和(自身を除く): 225489680

約数列:

[1, 2, 4, 8, 16, 43, 47, 86, 94, 172, 188, 344, 376, 688, 752, 2021, 4042, 6803, 8084, 13606, 16168, 27212, 32336, 54424, 108848, 292529, 319741, 585058, 639482, 1170116, 1278964, 2340232, 2557928, 4680464, 5115856, 13748863, 27497726, 54995452, 109990904, 219981808]

約数ペア:

[(1, 219981808), (2, 109990904), (4, 54995452), (8, 27497726), (16, 13748863), (43, 5115856), (47, 4680464), (86, 2557928), (94, 2340232), (172, 1278964), (188, 1170116), (344, 639482), (376, 585058), (688, 319741), (752, 292529), (2021, 108848), (4042, 54424), (6803, 32336), (8084, 27212), (13606, 16168)]