21462670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 41181696

約数和(自身を除く): 19719026

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 191, 382, 661, 955, 1322, 1910, 3247, 3305, 6494, 6610, 11237, 16235, 22474, 32470, 56185, 112370, 126251, 252502, 631255, 1262510, 2146267, 4292534, 10731335, 21462670]

約数ペア:

[(1, 21462670), (2, 10731335), (5, 4292534), (10, 2146267), (17, 1262510), (34, 631255), (85, 252502), (170, 126251), (191, 112370), (382, 56185), (661, 32470), (955, 22474), (1322, 16235), (1910, 11237), (3247, 6610), (3305, 6494)]