12721215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{733}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 22196160

約数和(自身を除く): 9474945

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 195, 267, 445, 733, 1157, 1335, 2199, 3471, 3665, 5785, 9529, 10995, 17355, 28587, 47645, 65237, 142935, 195711, 326185, 848081, 978555, 2544243, 4240405, 12721215]

約数ペア:

[(1, 12721215), (3, 4240405), (5, 2544243), (13, 978555), (15, 848081), (39, 326185), (65, 195711), (89, 142935), (195, 65237), (267, 47645), (445, 28587), (733, 17355), (1157, 10995), (1335, 9529), (2199, 5785), (3471, 3665)]