21023331

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5531}}^1$

素因数の和:5722

約数の個数: 16

約数和(自身を含む): 32218368

約数和(自身を除く): 11195037

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5531, 16593, 38717, 116151, 1001111, 3003333, 7007777, 21023331]

約数ペア:

[(1, 21023331), (3, 7007777), (7, 3003333), (21, 1001111), (181, 116151), (543, 38717), (1267, 16593), (3801, 5531)]