18894845

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3821}}^1$

素因数の和:3892

約数の個数: 16

約数和(自身を含む): 24216192

約数和(自身を除く): 5321347

約数列:

[1, 5, 23, 43, 115, 215, 989, 3821, 4945, 19105, 87883, 164303, 439415, 821515, 3778969, 18894845]

約数ペア:

[(1, 18894845), (5, 3778969), (23, 821515), (43, 439415), (115, 164303), (215, 87883), (989, 19105), (3821, 4945)]