21550115330

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{27278627}}^1$

素因数の和:27278713

約数の個数: 16

約数和(自身を含む): 39281224320

約数和(自身を除く): 17731108990

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 27278627, 54557254, 136393135, 272786270, 2155011533, 4310023066, 10775057665, 21550115330]

約数ペア:

[(1, 21550115330), (2, 10775057665), (5, 4310023066), (10, 2155011533), (79, 272786270), (158, 136393135), (395, 54557254), (790, 27278627)]