21133968

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3361}}^1$

素因数の和:3503

約数の個数: 40

約数和(自身を含む): 55029216

約数和(自身を除く): 33895248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3361, 6288, 6722, 10083, 13444, 20166, 26888, 40332, 53776, 80664, 161328, 440291, 880582, 1320873, 1761164, 2641746, 3522328, 5283492, 7044656, 10566984, 21133968]

約数ペア:

[(1, 21133968), (2, 10566984), (3, 7044656), (4, 5283492), (6, 3522328), (8, 2641746), (12, 1761164), (16, 1320873), (24, 880582), (48, 440291), (131, 161328), (262, 80664), (393, 53776), (524, 40332), (786, 26888), (1048, 20166), (1572, 13444), (2096, 10083), (3144, 6722), (3361, 6288)]