16939545

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 33215040

約数和(自身を除く): 16275495

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1213, 1995, 2793, 3639, 4655, 6065, 8491, 13965, 18195, 23047, 25473, 42455, 59437, 69141, 115235, 127365, 161329, 178311, 297185, 345705, 483987, 806645, 891555, 1129303, 2419935, 3387909, 5646515, 16939545]

約数ペア:

[(1, 16939545), (3, 5646515), (5, 3387909), (7, 2419935), (15, 1129303), (19, 891555), (21, 806645), (35, 483987), (49, 345705), (57, 297185), (95, 178311), (105, 161329), (133, 127365), (147, 115235), (245, 69141), (285, 59437), (399, 42455), (665, 25473), (735, 23047), (931, 18195), (1213, 13965), (1995, 8491), (2793, 6065), (3639, 4655)]