20717752

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12391}}^1$

素因数の和:12427

約数の個数: 32

約数和(自身を含む): 44611200

約数和(自身を除く): 23893448

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12391, 24782, 49564, 99128, 136301, 235429, 272602, 470858, 545204, 941716, 1090408, 1883432, 2589719, 5179438, 10358876, 20717752]

約数ペア:

[(1, 20717752), (2, 10358876), (4, 5179438), (8, 2589719), (11, 1883432), (19, 1090408), (22, 941716), (38, 545204), (44, 470858), (76, 272602), (88, 235429), (152, 136301), (209, 99128), (418, 49564), (836, 24782), (1672, 12391)]