18789747

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{1553}}^1$

素因数の和:1702

約数の個数: 16

約数和(自身を含む): 25982880

約数和(自身を除く): 7193133

約数列:

[1, 3, 37, 109, 111, 327, 1553, 4033, 4659, 12099, 57461, 169277, 172383, 507831, 6263249, 18789747]

約数ペア:

[(1, 18789747), (3, 6263249), (37, 507831), (109, 172383), (111, 169277), (327, 57461), (1553, 12099), (4033, 4659)]