28002789

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1973}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 43112160

約数和(自身を除く): 15109371

約数列:

[1, 3, 9, 19, 57, 83, 171, 249, 747, 1577, 1973, 4731, 5919, 14193, 17757, 37487, 112461, 163759, 337383, 491277, 1473831, 3111421, 9334263, 28002789]

約数ペア:

[(1, 28002789), (3, 9334263), (9, 3111421), (19, 1473831), (57, 491277), (83, 337383), (171, 163759), (249, 112461), (747, 37487), (1577, 17757), (1973, 14193), (4731, 5919)]