20275489

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 4561631

約数列:

[1, 13, 19, 23, 43, 83, 247, 299, 437, 559, 817, 989, 1079, 1577, 1909, 3569, 5681, 10621, 12857, 18791, 20501, 24817, 36271, 46397, 67811, 82087, 244283, 471523, 881543, 1067131, 1559653, 20275489]

約数ペア:

[(1, 20275489), (13, 1559653), (19, 1067131), (23, 881543), (43, 471523), (83, 244283), (247, 82087), (299, 67811), (437, 46397), (559, 36271), (817, 24817), (989, 20501), (1079, 18791), (1577, 12857), (1909, 10621), (3569, 5681)]