20216055

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 13376265

約数列:

[1, 3, 5, 15, 53, 59, 159, 177, 265, 295, 431, 795, 885, 1293, 2155, 3127, 6465, 9381, 15635, 22843, 25429, 46905, 68529, 76287, 114215, 127145, 342645, 381435, 1347737, 4043211, 6738685, 20216055]

約数ペア:

[(1, 20216055), (3, 6738685), (5, 4043211), (15, 1347737), (53, 381435), (59, 342645), (159, 127145), (177, 114215), (265, 76287), (295, 68529), (431, 46905), (795, 25429), (885, 22843), (1293, 15635), (2155, 9381), (3127, 6465)]