21343710740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{890063}}^1$

素因数の和:890192

約数の個数: 48

約数和(自身を含む): 49345148160

約数和(自身を除く): 28001437420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 890063, 1780126, 3560252, 4450315, 8900630, 9790693, 17801260, 19581386, 39162772, 48953465, 97016867, 97906930, 194033734, 195813860, 388067468, 485084335, 970168670, 1067185537, 1940337340, 2134371074, 4268742148, 5335927685, 10671855370, 21343710740]

約数ペア:

[(1, 21343710740), (2, 10671855370), (4, 5335927685), (5, 4268742148), (10, 2134371074), (11, 1940337340), (20, 1067185537), (22, 970168670), (44, 485084335), (55, 388067468), (109, 195813860), (110, 194033734), (218, 97906930), (220, 97016867), (436, 48953465), (545, 39162772), (1090, 19581386), (1199, 17801260), (2180, 9790693), (2398, 8900630), (4796, 4450315), (5995, 3560252), (11990, 1780126), (23980, 890063)]