31219293

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 50782464

約数和(自身を除く): 19563171

約数列:

[1, 3, 7, 17, 21, 51, 119, 157, 357, 471, 557, 1099, 1671, 2669, 3297, 3899, 8007, 9469, 11697, 18683, 28407, 56049, 66283, 87449, 198849, 262347, 612143, 1486633, 1836429, 4459899, 10406431, 31219293]

約数ペア:

[(1, 31219293), (3, 10406431), (7, 4459899), (17, 1836429), (21, 1486633), (51, 612143), (119, 262347), (157, 198849), (357, 87449), (471, 66283), (557, 56049), (1099, 28407), (1671, 18683), (2669, 11697), (3297, 9469), (3899, 8007)]