31390731

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2797}}^1$

素因数の和:2875

約数の個数: 24

約数和(自身を含む): 48013680

約数和(自身を除く): 16622949

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 2797, 3741, 8391, 11223, 25173, 81113, 120271, 243339, 360813, 730017, 1082439, 3487859, 10463577, 31390731]

約数ペア:

[(1, 31390731), (3, 10463577), (9, 3487859), (29, 1082439), (43, 730017), (87, 360813), (129, 243339), (261, 120271), (387, 81113), (1247, 25173), (2797, 11223), (3741, 8391)]