18039225

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3943}}^1$

素因数の和:4017

約数の個数: 24

約数和(自身を含む): 30321472

約数和(自身を除く): 12282247

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 305, 915, 1525, 3943, 4575, 11829, 19715, 59145, 98575, 240523, 295725, 721569, 1202615, 3607845, 6013075, 18039225]

約数ペア:

[(1, 18039225), (3, 6013075), (5, 3607845), (15, 1202615), (25, 721569), (61, 295725), (75, 240523), (183, 98575), (305, 59145), (915, 19715), (1525, 11829), (3943, 4575)]