18220965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1789}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 33680640

約数和(自身を除く): 15459675

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 105, 291, 485, 679, 1455, 1789, 2037, 3395, 5367, 8945, 10185, 12523, 26835, 37569, 62615, 173533, 187845, 520599, 867665, 1214731, 2602995, 3644193, 6073655, 18220965]

約数ペア:

[(1, 18220965), (3, 6073655), (5, 3644193), (7, 2602995), (15, 1214731), (21, 867665), (35, 520599), (97, 187845), (105, 173533), (291, 62615), (485, 37569), (679, 26835), (1455, 12523), (1789, 10185), (2037, 8945), (3395, 5367)]