31573989

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 48384000

約数和(自身を除く): 16810011

約数列:

[1, 3, 9, 27, 47, 139, 141, 179, 417, 423, 537, 1251, 1269, 1611, 3753, 4833, 6533, 8413, 19599, 24881, 25239, 58797, 74643, 75717, 176391, 223929, 227151, 671787, 1169407, 3508221, 10524663, 31573989]

約数ペア:

[(1, 31573989), (3, 10524663), (9, 3508221), (27, 1169407), (47, 671787), (139, 227151), (141, 223929), (179, 176391), (417, 75717), (423, 74643), (537, 58797), (1251, 25239), (1269, 24881), (1611, 19599), (3753, 8413), (4833, 6533)]