20375145

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7187}}^1$

素因数の和:7211

約数の個数: 40

約数和(自身を含む): 41747904

約数和(自身を除く): 21372759

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7187, 21561, 35935, 50309, 64683, 107805, 150927, 194049, 251545, 323415, 452781, 582147, 754635, 970245, 1358343, 2263905, 2910735, 4075029, 6791715, 20375145]

約数ペア:

[(1, 20375145), (3, 6791715), (5, 4075029), (7, 2910735), (9, 2263905), (15, 1358343), (21, 970245), (27, 754635), (35, 582147), (45, 452781), (63, 323415), (81, 251545), (105, 194049), (135, 150927), (189, 107805), (315, 64683), (405, 50309), (567, 35935), (945, 21561), (2835, 7187)]