19660011

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 30942720

約数和(自身を除く): 11282709

約数列:

[1, 3, 7, 21, 67, 89, 157, 201, 267, 469, 471, 623, 1099, 1407, 1869, 3297, 5963, 10519, 13973, 17889, 31557, 41741, 41919, 73633, 97811, 125223, 220899, 293433, 936191, 2808573, 6553337, 19660011]

約数ペア:

[(1, 19660011), (3, 6553337), (7, 2808573), (21, 936191), (67, 293433), (89, 220899), (157, 125223), (201, 97811), (267, 73633), (469, 41919), (471, 41741), (623, 31557), (1099, 17889), (1407, 13973), (1869, 10519), (3297, 5963)]