20464685

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3484

約数の個数: 16

約数和(自身を含む): 26376192

約数和(自身を除く): 5911507

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3391, 6035, 16955, 57647, 240761, 288235, 1203805, 4092937, 20464685]

約数ペア:

[(1, 20464685), (5, 4092937), (17, 1203805), (71, 288235), (85, 240761), (355, 57647), (1207, 16955), (3391, 6035)]