19810876

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{631}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 35675136

約数和(自身を除く): 15864260

約数列:

[1, 2, 4, 47, 94, 167, 188, 334, 631, 668, 1262, 2524, 7849, 15698, 29657, 31396, 59314, 105377, 118628, 210754, 421508, 4952719, 9905438, 19810876]

約数ペア:

[(1, 19810876), (2, 9905438), (4, 4952719), (47, 421508), (94, 210754), (167, 118628), (188, 105377), (334, 59314), (631, 31396), (668, 29657), (1262, 15698), (2524, 7849)]