18498909

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 30357504

約数和(自身を除く): 11858595

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 107, 143, 169, 321, 341, 403, 429, 507, 1023, 1177, 1209, 1391, 1859, 3317, 3531, 4173, 4433, 5239, 5577, 9951, 13299, 15301, 15717, 18083, 36487, 43121, 45903, 54249, 57629, 109461, 129363, 172887, 198913, 474331, 560573, 596739, 1422993, 1681719, 6166303, 18498909]

約数ペア:

[(1, 18498909), (3, 6166303), (11, 1681719), (13, 1422993), (31, 596739), (33, 560573), (39, 474331), (93, 198913), (107, 172887), (143, 129363), (169, 109461), (321, 57629), (341, 54249), (403, 45903), (429, 43121), (507, 36487), (1023, 18083), (1177, 15717), (1209, 15301), (1391, 13299), (1859, 9951), (3317, 5577), (3531, 5239), (4173, 4433)]