18939478

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1$

素因数の和:759

約数の個数: 16

約数和(自身を含む): 28881216

約数和(自身を除く): 9941738

約数列:

[1, 2, 113, 181, 226, 362, 463, 926, 20453, 40906, 52319, 83803, 104638, 167606, 9469739, 18939478]

約数ペア:

[(1, 18939478), (2, 9469739), (113, 167606), (181, 104638), (226, 83803), (362, 52319), (463, 40906), (926, 20453)]