18449385

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 30602880

約数和(自身を除く): 12153495

約数列:

[1, 3, 5, 15, 41, 123, 131, 205, 229, 393, 615, 655, 687, 1145, 1965, 3435, 5371, 9389, 16113, 26855, 28167, 29999, 46945, 80565, 89997, 140835, 149995, 449985, 1229959, 3689877, 6149795, 18449385]

約数ペア:

[(1, 18449385), (3, 6149795), (5, 3689877), (15, 1229959), (41, 449985), (123, 149995), (131, 140835), (205, 89997), (229, 80565), (393, 46945), (615, 29999), (655, 28167), (687, 26855), (1145, 16113), (1965, 9389), (3435, 5371)]