18307863

素因数分解:

$3^5\times 7^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 32148480

約数和(自身を除く): 13840617

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 229, 243, 329, 423, 567, 687, 987, 1269, 1603, 1701, 2061, 2961, 3807, 4809, 6183, 8883, 10763, 11421, 14427, 18549, 26649, 32289, 43281, 55647, 75341, 79947, 96867, 129843, 226023, 290601, 389529, 678069, 871803, 2034207, 2615409, 6102621, 18307863]

約数ペア:

[(1, 18307863), (3, 6102621), (7, 2615409), (9, 2034207), (21, 871803), (27, 678069), (47, 389529), (63, 290601), (81, 226023), (141, 129843), (189, 96867), (229, 79947), (243, 75341), (329, 55647), (423, 43281), (567, 32289), (687, 26649), (987, 18549), (1269, 14427), (1603, 11421), (1701, 10763), (2061, 8883), (2961, 6183), (3807, 4809)]