18240165

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1021}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 31726968

約数和(自身を除く): 13486803

約数列:

[1, 3, 5, 9, 15, 45, 397, 1021, 1191, 1985, 3063, 3573, 5105, 5955, 9189, 15315, 17865, 45945, 405337, 1216011, 2026685, 3648033, 6080055, 18240165]

約数ペア:

[(1, 18240165), (3, 6080055), (5, 3648033), (9, 2026685), (15, 1216011), (45, 405337), (397, 45945), (1021, 17865), (1191, 15315), (1985, 9189), (3063, 5955), (3573, 5105)]