31978778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{1987}}^1$

素因数の和:2621

約数の個数: 16

約数和(自身を含む): 51767520

約数和(自身を除く): 19788742

約数列:

[1, 2, 13, 26, 619, 1238, 1987, 3974, 8047, 16094, 25831, 51662, 1229953, 2459906, 15989389, 31978778]

約数ペア:

[(1, 31978778), (2, 15989389), (13, 2459906), (26, 1229953), (619, 51662), (1238, 25831), (1987, 16094), (3974, 8047)]