18539378

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 15244750

約数列:

[1, 2, 11, 13, 22, 26, 71, 83, 121, 142, 143, 166, 242, 286, 781, 913, 923, 1079, 1562, 1573, 1826, 1846, 2158, 3146, 5893, 8591, 10043, 10153, 11786, 11869, 17182, 20086, 20306, 23738, 64823, 76609, 111683, 129646, 130559, 153218, 223366, 261118, 713053, 842699, 1426106, 1685398, 9269689, 18539378]

約数ペア:

[(1, 18539378), (2, 9269689), (11, 1685398), (13, 1426106), (22, 842699), (26, 713053), (71, 261118), (83, 223366), (121, 153218), (142, 130559), (143, 129646), (166, 111683), (242, 76609), (286, 64823), (781, 23738), (913, 20306), (923, 20086), (1079, 17182), (1562, 11869), (1573, 11786), (1826, 10153), (1846, 10043), (2158, 8591), (3146, 5893)]