18934929

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:302

約数の個数: 36

約数和(自身を含む): 30260880

約数和(自身を除く): 11325951

約数列:

[1, 3, 9, 13, 39, 59, 117, 169, 177, 211, 507, 531, 633, 767, 1521, 1899, 2301, 2743, 6903, 8229, 9971, 12449, 24687, 29913, 35659, 37347, 89739, 106977, 112041, 161837, 320931, 485511, 1456533, 2103881, 6311643, 18934929]

約数ペア:

[(1, 18934929), (3, 6311643), (9, 2103881), (13, 1456533), (39, 485511), (59, 320931), (117, 161837), (169, 112041), (177, 106977), (211, 89739), (507, 37347), (531, 35659), (633, 29913), (767, 24687), (1521, 12449), (1899, 9971), (2301, 8229), (2743, 6903)]