21978333

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5077}}^1$

素因数の和:5133

約数の個数: 24

約数和(自身を含む): 35119448

約数和(自身を除く): 13141115

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 5077, 15231, 45693, 66001, 187849, 198003, 563547, 594009, 1690641, 2442037, 7326111, 21978333]

約数ペア:

[(1, 21978333), (3, 7326111), (9, 2442037), (13, 1690641), (37, 594009), (39, 563547), (111, 198003), (117, 187849), (333, 66001), (481, 45693), (1443, 15231), (4329, 5077)]