21475505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3461}}^1$

素因数の和:3556

約数の個数: 16

約数和(自身を含む): 27668304

約数和(自身を除く): 6192799

約数列:

[1, 5, 17, 73, 85, 365, 1241, 3461, 6205, 17305, 58837, 252653, 294185, 1263265, 4295101, 21475505]

約数ペア:

[(1, 21475505), (5, 4295101), (17, 1263265), (73, 294185), (85, 252653), (365, 58837), (1241, 17305), (3461, 6205)]