21291240085

素因数分解:

$5^1\times {\mathrm{389}}^1\times {\mathrm{941}}^1\times {\mathrm{11633}}^1$

素因数の和:12968

約数の個数: 16

約数和(自身を含む): 25644593520

約数和(自身を除く): 4353353435

約数列:

[1, 5, 389, 941, 1945, 4705, 11633, 58165, 366049, 1830245, 4525237, 10946653, 22626185, 54733265, 4258248017, 21291240085]

約数ペア:

[(1, 21291240085), (5, 4258248017), (389, 54733265), (941, 22626185), (1945, 10946653), (4705, 4525237), (11633, 1830245), (58165, 366049)]