16978563

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 30191616

約数和(自身を除く): 13213053

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 83, 119, 153, 191, 249, 357, 573, 581, 747, 1071, 1337, 1411, 1719, 1743, 3247, 4011, 4233, 5229, 9741, 9877, 12033, 12699, 15853, 22729, 29223, 29631, 47559, 68187, 88893, 110971, 142677, 204561, 269501, 332913, 808503, 998739, 1886507, 2425509, 5659521, 16978563]

約数ペア:

[(1, 16978563), (3, 5659521), (7, 2425509), (9, 1886507), (17, 998739), (21, 808503), (51, 332913), (63, 269501), (83, 204561), (119, 142677), (153, 110971), (191, 88893), (249, 68187), (357, 47559), (573, 29631), (581, 29223), (747, 22729), (1071, 15853), (1337, 12699), (1411, 12033), (1719, 9877), (1743, 9741), (3247, 5229), (4011, 4233)]