16815969

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3391}}^1$

素因数の和:3445

約数の個数: 24

約数和(自身を含む): 26457600

約数和(自身を除く): 9641631

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 3391, 4959, 10173, 30519, 64429, 98339, 193287, 295017, 579861, 885051, 1868441, 5605323, 16815969]

約数ペア:

[(1, 16815969), (3, 5605323), (9, 1868441), (19, 885051), (29, 579861), (57, 295017), (87, 193287), (171, 98339), (261, 64429), (551, 30519), (1653, 10173), (3391, 4959)]