661113

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 1053000

約数和(自身を除く): 391887

約数列:

[1, 3, 9, 17, 29, 51, 87, 149, 153, 261, 447, 493, 1341, 1479, 2533, 4321, 4437, 7599, 12963, 22797, 38889, 73457, 220371, 661113]

約数ペア:

[(1, 661113), (3, 220371), (9, 73457), (17, 38889), (29, 22797), (51, 12963), (87, 7599), (149, 4437), (153, 4321), (261, 2533), (447, 1479), (493, 1341)]