20642612

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 36785280

約数和(自身を除く): 16142668

約数列:

[1, 2, 4, 137, 139, 271, 274, 278, 542, 548, 556, 1084, 19043, 37127, 37669, 38086, 74254, 75338, 76172, 148508, 150676, 5160653, 10321306, 20642612]

約数ペア:

[(1, 20642612), (2, 10321306), (4, 5160653), (137, 150676), (139, 148508), (271, 76172), (274, 75338), (278, 74254), (542, 38086), (548, 37669), (556, 37127), (1084, 19043)]