217691804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{31513}}^1$

素因数の和:31685

約数の個数: 24

約数和(自身を含む): 418253808

約数和(自身を除く): 200562004

約数列:

[1, 2, 4, 11, 22, 44, 157, 314, 628, 1727, 3454, 6908, 31513, 63026, 126052, 346643, 693286, 1386572, 4947541, 9895082, 19790164, 54422951, 108845902, 217691804]

約数ペア:

[(1, 217691804), (2, 108845902), (4, 54422951), (11, 19790164), (22, 9895082), (44, 4947541), (157, 1386572), (314, 693286), (628, 346643), (1727, 126052), (3454, 63026), (6908, 31513)]