28065705

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21023}}^1$

素因数の和:21120

約数の個数: 16

約数和(自身を含む): 45411840

約数和(自身を除く): 17346135

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21023, 63069, 105115, 315345, 1871047, 5613141, 9355235, 28065705]

約数ペア:

[(1, 28065705), (3, 9355235), (5, 5613141), (15, 1871047), (89, 315345), (267, 105115), (445, 63069), (1335, 21023)]