408781107

素因数分解:

$3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{10979}}^1$

素因数の和:11192

約数の個数: 32

約数和(自身を含む): 695692800

約数和(自身を除く): 286911693

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 197, 591, 1379, 1773, 4137, 5319, 10979, 12411, 32937, 37233, 76853, 98811, 230559, 296433, 691677, 2075031, 2162863, 6488589, 15140041, 19465767, 45420123, 58397301, 136260369, 408781107]

約数ペア:

[(1, 408781107), (3, 136260369), (7, 58397301), (9, 45420123), (21, 19465767), (27, 15140041), (63, 6488589), (189, 2162863), (197, 2075031), (591, 691677), (1379, 296433), (1773, 230559), (4137, 98811), (5319, 76853), (10979, 37233), (12411, 32937)]