20882505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8647}}^1$

素因数の和:8685

約数の個数: 32

約数和(自身を含む): 39849984

約数和(自身を除く): 18967479

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8647, 25941, 43235, 60529, 129705, 181587, 198881, 302645, 596643, 907935, 994405, 1392167, 2983215, 4176501, 6960835, 20882505]

約数ペア:

[(1, 20882505), (3, 6960835), (5, 4176501), (7, 2983215), (15, 1392167), (21, 994405), (23, 907935), (35, 596643), (69, 302645), (105, 198881), (115, 181587), (161, 129705), (345, 60529), (483, 43235), (805, 25941), (2415, 8647)]