18211105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 24820992

約数和(自身を除く): 6609887

約数列:

[1, 5, 11, 31, 55, 121, 155, 341, 605, 971, 1705, 3751, 4855, 10681, 18755, 30101, 53405, 117491, 150505, 331111, 587455, 1655555, 3642221, 18211105]

約数ペア:

[(1, 18211105), (5, 3642221), (11, 1655555), (31, 587455), (55, 331111), (121, 150505), (155, 117491), (341, 53405), (605, 30101), (971, 18755), (1705, 10681), (3751, 4855)]