20184915

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1427}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 14361261

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1427, 2829, 4281, 4715, 7135, 14145, 21405, 32821, 58507, 98463, 164105, 175521, 292535, 492315, 877605, 1345661, 4036983, 6728305, 20184915]

約数ペア:

[(1, 20184915), (3, 6728305), (5, 4036983), (15, 1345661), (23, 877605), (41, 492315), (69, 292535), (115, 175521), (123, 164105), (205, 98463), (345, 58507), (615, 32821), (943, 21405), (1427, 14145), (2829, 7135), (4281, 4715)]