20459915

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{7043}}^1$

素因数の和:7138

約数の個数: 16

約数和(自身を含む): 28401408

約数和(自身を除く): 7941493

約数列:

[1, 5, 7, 35, 83, 415, 581, 2905, 7043, 35215, 49301, 246505, 584569, 2922845, 4091983, 20459915]

約数ペア:

[(1, 20459915), (5, 4091983), (7, 2922845), (35, 584569), (83, 246505), (415, 49301), (581, 35215), (2905, 7043)]