18245409

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 30989952

約数和(自身を除く): 12744543

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 97, 159, 169, 273, 291, 371, 507, 679, 689, 1113, 1183, 1261, 2037, 2067, 3549, 3783, 4823, 5141, 8827, 8957, 14469, 15423, 16393, 26481, 26871, 35987, 49179, 62699, 66833, 107961, 114751, 188097, 200499, 344253, 467831, 868829, 1403493, 2606487, 6081803, 18245409]

約数ペア:

[(1, 18245409), (3, 6081803), (7, 2606487), (13, 1403493), (21, 868829), (39, 467831), (53, 344253), (91, 200499), (97, 188097), (159, 114751), (169, 107961), (273, 66833), (291, 62699), (371, 49179), (507, 35987), (679, 26871), (689, 26481), (1113, 16393), (1183, 15423), (1261, 14469), (2037, 8957), (2067, 8827), (3549, 5141), (3783, 4823)]