18576621

素因数分解:

$3^5\times 7^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 32474624

約数和(自身を除く): 13898003

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 163, 189, 201, 243, 469, 489, 567, 603, 1141, 1407, 1467, 1701, 1809, 3423, 4221, 4401, 5427, 10269, 10921, 12663, 13203, 16281, 30807, 32763, 37989, 39609, 76447, 92421, 98289, 113967, 229341, 277263, 294867, 688023, 884601, 2064069, 2653803, 6192207, 18576621]

約数ペア:

[(1, 18576621), (3, 6192207), (7, 2653803), (9, 2064069), (21, 884601), (27, 688023), (63, 294867), (67, 277263), (81, 229341), (163, 113967), (189, 98289), (201, 92421), (243, 76447), (469, 39609), (489, 37989), (567, 32763), (603, 30807), (1141, 16281), (1407, 13203), (1467, 12663), (1701, 10921), (1809, 10269), (3423, 5427), (4221, 4401)]