16945719

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6781}}^1$

素因数の和:6815

約数の個数: 24

約数和(自身を含む): 27833328

約数和(自身を除く): 10887609

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 6781, 20343, 47467, 115277, 142401, 332269, 345831, 806939, 996807, 2420817, 5648573, 16945719]

約数ペア:

[(1, 16945719), (3, 5648573), (7, 2420817), (17, 996807), (21, 806939), (49, 345831), (51, 332269), (119, 142401), (147, 115277), (357, 47467), (833, 20343), (2499, 6781)]