211551815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{4729}}^1$

素因数の和:5146

約数の個数: 16

約数和(自身を含む): 265636800

約数和(自身を除く): 54084985

約数列:

[1, 5, 23, 115, 389, 1945, 4729, 8947, 23645, 44735, 108767, 543835, 1839581, 9197905, 42310363, 211551815]

約数ペア:

[(1, 211551815), (5, 42310363), (23, 9197905), (115, 1839581), (389, 543835), (1945, 108767), (4729, 44735), (8947, 23645)]