21864801

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54799}}^1$

素因数の和:54828

約数の個数: 16

約数和(自身を含む): 35072000

約数和(自身を除く): 13207199

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54799, 164397, 383593, 1041181, 1150779, 3123543, 7288267, 21864801]

約数ペア:

[(1, 21864801), (3, 7288267), (7, 3123543), (19, 1150779), (21, 1041181), (57, 383593), (133, 164397), (399, 54799)]