18878438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{4643}}^1$

素因数の和:4771

約数の個数: 16

約数和(自身を含む): 30093120

約数和(自身を除く): 11214682

約数列:

[1, 2, 19, 38, 107, 214, 2033, 4066, 4643, 9286, 88217, 176434, 496801, 993602, 9439219, 18878438]

約数ペア:

[(1, 18878438), (2, 9439219), (19, 993602), (38, 496801), (107, 176434), (214, 88217), (2033, 9286), (4066, 4643)]