7216521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 11010048

約数和(自身を除く): 3793527

約数列:

[1, 3, 13, 31, 39, 47, 93, 127, 141, 381, 403, 611, 1209, 1457, 1651, 1833, 3937, 4371, 4953, 5969, 11811, 17907, 18941, 51181, 56823, 77597, 153543, 185039, 232791, 555117, 2405507, 7216521]

約数ペア:

[(1, 7216521), (3, 2405507), (13, 555117), (31, 232791), (39, 185039), (47, 153543), (93, 77597), (127, 56823), (141, 51181), (381, 18941), (403, 17907), (611, 11811), (1209, 5969), (1457, 4953), (1651, 4371), (1833, 3937)]