75840387

素因数分解:

$3^1\times 7^4\times {\mathrm{10529}}^1$

素因数の和:10560

約数の個数: 20

約数和(自身を含む): 117978120

約数和(自身を除く): 42137733

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 10529, 31587, 73703, 221109, 515921, 1547763, 3611447, 10834341, 25280129, 75840387]

約数ペア:

[(1, 75840387), (3, 25280129), (7, 10834341), (21, 3611447), (49, 1547763), (147, 515921), (343, 221109), (1029, 73703), (2401, 31587), (7203, 10529)]