19968165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{63391}}^1$

素因数の和:63409

約数の個数: 24

約数和(自身を含む): 39556608

約数和(自身を除く): 19588443

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 63391, 190173, 316955, 443737, 570519, 950865, 1331211, 2218685, 2852595, 3993633, 6656055, 19968165]

約数ペア:

[(1, 19968165), (3, 6656055), (5, 3993633), (7, 2852595), (9, 2218685), (15, 1331211), (21, 950865), (35, 570519), (45, 443737), (63, 316955), (105, 190173), (315, 63391)]