16820990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{98947}}^1$

素因数の和:98971

約数の個数: 16

約数和(自身を含む): 32059152

約数和(自身を除く): 15238162

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 98947, 197894, 494735, 989470, 1682099, 3364198, 8410495, 16820990]

約数ペア:

[(1, 16820990), (2, 8410495), (5, 3364198), (10, 1682099), (17, 989470), (34, 494735), (85, 197894), (170, 98947)]