219093027

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 308582400

約数和(自身を除く): 89489373

約数列:

[1, 3, 31, 93, 97, 149, 163, 291, 447, 489, 3007, 4619, 5053, 9021, 13857, 14453, 15159, 15811, 24287, 43359, 47433, 72861, 448043, 490141, 752897, 1344129, 1470423, 2258691, 2355839, 7067517, 73031009, 219093027]

約数ペア:

[(1, 219093027), (3, 73031009), (31, 7067517), (93, 2355839), (97, 2258691), (149, 1470423), (163, 1344129), (291, 752897), (447, 490141), (489, 448043), (3007, 72861), (4619, 47433), (5053, 43359), (9021, 24287), (13857, 15811), (14453, 15159)]