20465745

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 34497792

約数和(自身を除く): 14032047

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 433, 685, 1299, 2055, 2165, 3151, 6495, 9453, 9959, 15755, 29877, 47265, 49795, 59321, 149385, 177963, 296605, 889815, 1364383, 4093149, 6821915, 20465745]

約数ペア:

[(1, 20465745), (3, 6821915), (5, 4093149), (15, 1364383), (23, 889815), (69, 296605), (115, 177963), (137, 149385), (345, 59321), (411, 49795), (433, 47265), (685, 29877), (1299, 15755), (2055, 9959), (2165, 9453), (3151, 6495)]