19654804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{547}}^1\times {\mathrm{691}}^1$

素因数の和:1255

約数の個数: 24

約数和(自身を含む): 37163168

約数和(自身を除く): 17508364

約数列:

[1, 2, 4, 13, 26, 52, 547, 691, 1094, 1382, 2188, 2764, 7111, 8983, 14222, 17966, 28444, 35932, 377977, 755954, 1511908, 4913701, 9827402, 19654804]

約数ペア:

[(1, 19654804), (2, 9827402), (4, 4913701), (13, 1511908), (26, 755954), (52, 377977), (547, 35932), (691, 28444), (1094, 17966), (1382, 14222), (2188, 8983), (2764, 7111)]