20921995505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1172429}}^1$

素因数の和:1172560

約数の個数: 16

約数和(自身を含む): 25999807680

約数和(自身を除く): 5077812175

約数列:

[1, 5, 43, 83, 215, 415, 3569, 17845, 1172429, 5862145, 50414447, 97311607, 252072235, 486558035, 4184399101, 20921995505]

約数ペア:

[(1, 20921995505), (5, 4184399101), (43, 486558035), (83, 252072235), (215, 97311607), (415, 50414447), (3569, 5862145), (17845, 1172429)]