21604715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5381}}^1$

素因数の和:5470

約数の個数: 16

約数和(自身を含む): 28675296

約数和(自身を除く): 7070581

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 5381, 26905, 59191, 295955, 392813, 1964065, 4320943, 21604715]

約数ペア:

[(1, 21604715), (5, 4320943), (11, 1964065), (55, 392813), (73, 295955), (365, 59191), (803, 26905), (4015, 5381)]