18390915

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5923}}^1$

素因数の和:5960

約数の個数: 32

約数和(自身を含む): 34122240

約数和(自身を除く): 15731325

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 5923, 17769, 29615, 53307, 88845, 136229, 159921, 266535, 408687, 681145, 799605, 1226061, 2043435, 3678183, 6130305, 18390915]

約数ペア:

[(1, 18390915), (3, 6130305), (5, 3678183), (9, 2043435), (15, 1226061), (23, 799605), (27, 681145), (45, 408687), (69, 266535), (115, 159921), (135, 136229), (207, 88845), (345, 53307), (621, 29615), (1035, 17769), (3105, 5923)]