19790815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{2383}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 26090496

約数和(自身を除く): 6299681

約数列:

[1, 5, 11, 55, 151, 755, 1661, 2383, 8305, 11915, 26213, 131065, 359833, 1799165, 3958163, 19790815]

約数ペア:

[(1, 19790815), (5, 3958163), (11, 1799165), (55, 359833), (151, 131065), (755, 26213), (1661, 11915), (2383, 8305)]