18887965

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1489}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 23601600

約数和(自身を除く): 4713635

約数列:

[1, 5, 43, 59, 215, 295, 1489, 2537, 7445, 12685, 64027, 87851, 320135, 439255, 3777593, 18887965]

約数ペア:

[(1, 18887965), (5, 3777593), (43, 439255), (59, 320135), (215, 87851), (295, 64027), (1489, 12685), (2537, 7445)]