2221455

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 3815424

約数和(自身を除く): 1593969

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 137, 141, 235, 345, 411, 685, 705, 1081, 2055, 3151, 3243, 5405, 6439, 9453, 15755, 16215, 19317, 32195, 47265, 96585, 148097, 444291, 740485, 2221455]

約数ペア:

[(1, 2221455), (3, 740485), (5, 444291), (15, 148097), (23, 96585), (47, 47265), (69, 32195), (115, 19317), (137, 16215), (141, 15755), (235, 9453), (345, 6439), (411, 5405), (685, 3243), (705, 3151), (1081, 2055)]