31981959

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{2309}}^1$

素因数の和:2346

約数の個数: 28

約数和(自身を含む): 50496600

約数和(自身を除く): 18514641

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 729, 1539, 2309, 4617, 6927, 13851, 20781, 43871, 62343, 131613, 187029, 394839, 561087, 1184517, 1683261, 3553551, 10660653, 31981959]

約数ペア:

[(1, 31981959), (3, 10660653), (9, 3553551), (19, 1683261), (27, 1184517), (57, 561087), (81, 394839), (171, 187029), (243, 131613), (513, 62343), (729, 43871), (1539, 20781), (2309, 13851), (4617, 6927)]