213497890

素因数分解:

$2^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{111779}}^1$

素因数の和:111977

約数の個数: 16

約数和(自身を含む): 386311680

約数和(自身を除く): 172813790

約数列:

[1, 2, 5, 10, 191, 382, 955, 1910, 111779, 223558, 558895, 1117790, 21349789, 42699578, 106748945, 213497890]

約数ペア:

[(1, 213497890), (2, 106748945), (5, 42699578), (10, 21349789), (191, 1117790), (382, 558895), (955, 223558), (1910, 111779)]