16991457

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 27328512

約数和(自身を除く): 10337055

約数列:

[1, 3, 7, 21, 23, 69, 127, 161, 277, 381, 483, 831, 889, 1939, 2667, 2921, 5817, 6371, 8763, 19113, 20447, 35179, 44597, 61341, 105537, 133791, 246253, 738759, 809117, 2427351, 5663819, 16991457]

約数ペア:

[(1, 16991457), (3, 5663819), (7, 2427351), (21, 809117), (23, 738759), (69, 246253), (127, 133791), (161, 105537), (277, 61341), (381, 44597), (483, 35179), (831, 20447), (889, 19113), (1939, 8763), (2667, 6371), (2921, 5817)]