20754615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1259}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 17468745

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 157, 471, 785, 1099, 1259, 2355, 3297, 3777, 5495, 6295, 8813, 16485, 18885, 26439, 44065, 132195, 197663, 592989, 988315, 1383641, 2964945, 4150923, 6918205, 20754615]

約数ペア:

[(1, 20754615), (3, 6918205), (5, 4150923), (7, 2964945), (15, 1383641), (21, 988315), (35, 592989), (105, 197663), (157, 132195), (471, 44065), (785, 26439), (1099, 18885), (1259, 16485), (2355, 8813), (3297, 6295), (3777, 5495)]