19620865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{127}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 26385408

約数和(自身を除く): 6764543

約数列:

[1, 5, 11, 53, 55, 127, 265, 583, 635, 1397, 2809, 2915, 6731, 6985, 14045, 30899, 33655, 74041, 154495, 356743, 370205, 1783715, 3924173, 19620865]

約数ペア:

[(1, 19620865), (5, 3924173), (11, 1783715), (53, 370205), (55, 356743), (127, 154495), (265, 74041), (583, 33655), (635, 30899), (1397, 14045), (2809, 6985), (2915, 6731)]