16820769

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 28366848

約数和(自身を除く): 11546079

約数列:

[1, 3, 7, 17, 21, 49, 51, 53, 119, 127, 147, 159, 357, 371, 381, 833, 889, 901, 1113, 2159, 2499, 2597, 2667, 2703, 6223, 6307, 6477, 6731, 7791, 15113, 18669, 18921, 20193, 44149, 45339, 47117, 105791, 114427, 132447, 141351, 317373, 329819, 343281, 800989, 989457, 2402967, 5606923, 16820769]

約数ペア:

[(1, 16820769), (3, 5606923), (7, 2402967), (17, 989457), (21, 800989), (49, 343281), (51, 329819), (53, 317373), (119, 141351), (127, 132447), (147, 114427), (159, 105791), (357, 47117), (371, 45339), (381, 44149), (833, 20193), (889, 18921), (901, 18669), (1113, 15113), (2159, 7791), (2499, 6731), (2597, 6477), (2667, 6307), (2703, 6223)]