209859093

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{42473}}^1$

素因数の和:42546

約数の個数: 20

約数和(自身を含む): 318639948

約数和(自身を除く): 108780855

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 42473, 127419, 382257, 1146771, 2590853, 3440313, 7772559, 23317677, 69953031, 209859093]

約数ペア:

[(1, 209859093), (3, 69953031), (9, 23317677), (27, 7772559), (61, 3440313), (81, 2590853), (183, 1146771), (549, 382257), (1647, 127419), (4941, 42473)]