21338824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10799}}^1$

素因数の和:10837

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 24021176

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10799, 21598, 43196, 86392, 140387, 205181, 280774, 410362, 561548, 820724, 1123096, 1641448, 2667353, 5334706, 10669412, 21338824]

約数ペア:

[(1, 21338824), (2, 10669412), (4, 5334706), (8, 2667353), (13, 1641448), (19, 1123096), (26, 820724), (38, 561548), (52, 410362), (76, 280774), (104, 205181), (152, 140387), (247, 86392), (494, 43196), (988, 21598), (1976, 10799)]