18764015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{857}}^1$

素因数の和:1042

約数の個数: 16

約数和(自身を含む): 23474880

約数和(自身を除く): 4710865

約数列:

[1, 5, 29, 145, 151, 755, 857, 4285, 4379, 21895, 24853, 124265, 129407, 647035, 3752803, 18764015]

約数ペア:

[(1, 18764015), (5, 3752803), (29, 647035), (145, 129407), (151, 124265), (755, 24853), (857, 21895), (4285, 4379)]