128838598

素因数分解:

$2^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{20963}}^1$

素因数の和:21411

約数の個数: 16

約数和(自身を含む): 221379840

約数和(自身を除く): 92541242

約数列:

[1, 2, 7, 14, 439, 878, 3073, 6146, 20963, 41926, 146741, 293482, 9202757, 18405514, 64419299, 128838598]

約数ペア:

[(1, 128838598), (2, 64419299), (7, 18405514), (14, 9202757), (439, 293482), (878, 146741), (3073, 41926), (6146, 20963)]