21000391727

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{547}}^1\times {\mathrm{10733}}^1$

素因数の和:11367

約数の個数: 24

約数和(自身を含む): 24811254576

約数和(自身を除く): 3810862849

約数列:

[1, 7, 49, 73, 511, 547, 3577, 3829, 10733, 26803, 39931, 75131, 279517, 525917, 783509, 1956619, 5484563, 5870951, 38391941, 41096657, 287676599, 428579423, 3000055961, 21000391727]

約数ペア:

[(1, 21000391727), (7, 3000055961), (49, 428579423), (73, 287676599), (511, 41096657), (547, 38391941), (3577, 5870951), (3829, 5484563), (10733, 1956619), (26803, 783509), (39931, 525917), (75131, 279517)]