1991231469

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{643}}^1\times {\mathrm{7321}}^1$

素因数の和:8017

約数の個数: 24

約数和(自身を含む): 2942389632

約数和(自身を除く): 951158163

約数列:

[1, 3, 9, 47, 141, 423, 643, 1929, 5787, 7321, 21963, 30221, 65889, 90663, 271989, 344087, 1032261, 3096783, 4707403, 14122209, 42366627, 221247941, 663743823, 1991231469]

約数ペア:

[(1, 1991231469), (3, 663743823), (9, 221247941), (47, 42366627), (141, 14122209), (423, 4707403), (643, 3096783), (1929, 1032261), (5787, 344087), (7321, 271989), (21963, 90663), (30221, 65889)]