16722985

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 21750336

約数和(自身を除く): 5027351

約数列:

[1, 5, 17, 71, 85, 163, 289, 355, 815, 1207, 1445, 2771, 6035, 11573, 13855, 20519, 47107, 57865, 102595, 196741, 235535, 983705, 3344597, 16722985]

約数ペア:

[(1, 16722985), (5, 3344597), (17, 983705), (71, 235535), (85, 196741), (163, 102595), (289, 57865), (355, 47107), (815, 20519), (1207, 13855), (1445, 11573), (2771, 6035)]