19987473

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{8297}}^1$

素因数の和:8384

約数の個数: 16

約数和(自身を含む): 29474496

約数和(自身を除く): 9487023

約数列:

[1, 3, 11, 33, 73, 219, 803, 2409, 8297, 24891, 91267, 273801, 605681, 1817043, 6662491, 19987473]

約数ペア:

[(1, 19987473), (3, 6662491), (11, 1817043), (33, 605681), (73, 273801), (219, 91267), (803, 24891), (2409, 8297)]