211231390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{297509}}^1$

素因数の和:297587

約数の個数: 16

約数和(自身を含む): 385572960

約数和(自身を除く): 174341570

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 297509, 595018, 1487545, 2975090, 21123139, 42246278, 105615695, 211231390]

約数ペア:

[(1, 211231390), (2, 105615695), (5, 42246278), (10, 21123139), (71, 2975090), (142, 1487545), (355, 595018), (710, 297509)]