19851356

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{3917}}^1$

素因数の和:4109

約数の個数: 24

約数和(自身を含む): 39932256

約数和(自身を除く): 20080900

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 3917, 5068, 7834, 15668, 27419, 54838, 109676, 708977, 1417954, 2835908, 4962839, 9925678, 19851356]

約数ペア:

[(1, 19851356), (2, 9925678), (4, 4962839), (7, 2835908), (14, 1417954), (28, 708977), (181, 109676), (362, 54838), (724, 27419), (1267, 15668), (2534, 7834), (3917, 5068)]