21116133

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2531}}^1$

素因数の和:2646

約数の個数: 20

約数和(自身を含む): 31862688

約数和(自身を除く): 10746555

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2531, 2781, 7593, 8343, 22779, 68337, 205011, 260693, 782079, 2346237, 7038711, 21116133]

約数ペア:

[(1, 21116133), (3, 7038711), (9, 2346237), (27, 782079), (81, 260693), (103, 205011), (309, 68337), (927, 22779), (2531, 8343), (2781, 7593)]