21284912

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120937}}^1$

素因数の和:120956

約数の個数: 20

約数和(自身を含む): 44988936

約数和(自身を除く): 23704024

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120937, 241874, 483748, 967496, 1330307, 1934992, 2660614, 5321228, 10642456, 21284912]

約数ペア:

[(1, 21284912), (2, 10642456), (4, 5321228), (8, 2660614), (11, 1934992), (16, 1330307), (22, 967496), (44, 483748), (88, 241874), (176, 120937)]