19887896

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2711}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 42958080

約数和(自身を除く): 23070184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2711, 3668, 5422, 7336, 10844, 18977, 21688, 37954, 75908, 151816, 355141, 710282, 1420564, 2485987, 2841128, 4971974, 9943948, 19887896]

約数ペア:

[(1, 19887896), (2, 9943948), (4, 4971974), (7, 2841128), (8, 2485987), (14, 1420564), (28, 710282), (56, 355141), (131, 151816), (262, 75908), (524, 37954), (917, 21688), (1048, 18977), (1834, 10844), (2711, 7336), (3668, 5422)]