20816424

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2207}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 56833920

約数和(自身を除く): 36017496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2207, 2358, 3144, 4414, 4716, 6621, 8828, 9432, 13242, 17656, 19863, 26484, 39726, 52968, 79452, 158904, 289117, 578234, 867351, 1156468, 1734702, 2312936, 2602053, 3469404, 5204106, 6938808, 10408212, 20816424]

約数ペア:

[(1, 20816424), (2, 10408212), (3, 6938808), (4, 5204106), (6, 3469404), (8, 2602053), (9, 2312936), (12, 1734702), (18, 1156468), (24, 867351), (36, 578234), (72, 289117), (131, 158904), (262, 79452), (393, 52968), (524, 39726), (786, 26484), (1048, 19863), (1179, 17656), (1572, 13242), (2207, 9432), (2358, 8828), (3144, 6621), (4414, 4716)]