20731828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1741}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 39264680

約数和(自身を除く): 18532852

約数列:

[1, 2, 4, 13, 26, 52, 229, 458, 916, 1741, 2977, 3482, 5954, 6964, 11908, 22633, 45266, 90532, 398689, 797378, 1594756, 5182957, 10365914, 20731828]

約数ペア:

[(1, 20731828), (2, 10365914), (4, 5182957), (13, 1594756), (26, 797378), (52, 398689), (229, 90532), (458, 45266), (916, 22633), (1741, 11908), (2977, 6964), (3482, 5954)]