31091109

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 49373184

約数和(自身を除く): 18282075

約数列:

[1, 3, 7, 21, 31, 93, 163, 217, 293, 489, 651, 879, 1141, 2051, 3423, 5053, 6153, 9083, 15159, 27249, 35371, 47759, 63581, 106113, 143277, 190743, 334313, 1002939, 1480529, 4441587, 10363703, 31091109]

約数ペア:

[(1, 31091109), (3, 10363703), (7, 4441587), (21, 1480529), (31, 1002939), (93, 334313), (163, 190743), (217, 143277), (293, 106113), (489, 63581), (651, 47759), (879, 35371), (1141, 27249), (2051, 15159), (3423, 9083), (5053, 6153)]