17991213

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{1487}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 24879360

約数和(自身を除く): 6888147

約数列:

[1, 3, 37, 109, 111, 327, 1487, 4033, 4461, 12099, 55019, 162083, 165057, 486249, 5997071, 17991213]

約数ペア:

[(1, 17991213), (3, 5997071), (37, 486249), (109, 165057), (111, 162083), (327, 55019), (1487, 12099), (4033, 4461)]