9920385

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2477}}^1$

素因数の和:2577

約数の個数: 24

約数和(自身を含む): 17395560

約数和(自身を除く): 7475175

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 2477, 4005, 7431, 12385, 22293, 37155, 111465, 220453, 661359, 1102265, 1984077, 3306795, 9920385]

約数ペア:

[(1, 9920385), (3, 3306795), (5, 1984077), (9, 1102265), (15, 661359), (45, 220453), (89, 111465), (267, 37155), (445, 22293), (801, 12385), (1335, 7431), (2477, 4005)]