18847689

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 29884416

約数和(自身を除く): 11036727

約数列:

[1, 3, 7, 21, 37, 111, 127, 191, 259, 381, 573, 777, 889, 1337, 2667, 4011, 4699, 7067, 14097, 21201, 24257, 32893, 49469, 72771, 98679, 148407, 169799, 509397, 897509, 2692527, 6282563, 18847689]

約数ペア:

[(1, 18847689), (3, 6282563), (7, 2692527), (21, 897509), (37, 509397), (111, 169799), (127, 148407), (191, 98679), (259, 72771), (381, 49469), (573, 32893), (777, 24257), (889, 21201), (1337, 14097), (2667, 7067), (4011, 4699)]