20672754879

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1\times {\mathrm{19919}}^1$

素因数の和:20679

約数の個数: 32

約数和(自身を含む): 31981639680

約数和(自身を除く): 11308884801

約数列:

[1, 3, 7, 21, 73, 219, 511, 677, 1533, 2031, 4739, 14217, 19919, 49421, 59757, 139433, 148263, 345947, 418299, 1037841, 1454087, 4362261, 10178609, 13485163, 30535827, 40455489, 94396141, 283188423, 984416899, 2953250697, 6890918293, 20672754879]

約数ペア:

[(1, 20672754879), (3, 6890918293), (7, 2953250697), (21, 984416899), (73, 283188423), (219, 94396141), (511, 40455489), (677, 30535827), (1533, 13485163), (2031, 10178609), (4739, 4362261), (14217, 1454087), (19919, 1037841), (49421, 418299), (59757, 345947), (139433, 148263)]