21684155

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{1741}}^1$

素因数の和:1846

約数の個数: 16

約数和(自身を含む): 27091584

約数和(自身を除く): 5407429

約数列:

[1, 5, 47, 53, 235, 265, 1741, 2491, 8705, 12455, 81827, 92273, 409135, 461365, 4336831, 21684155]

約数ペア:

[(1, 21684155), (5, 4336831), (47, 461365), (53, 409135), (235, 92273), (265, 81827), (1741, 12455), (2491, 8705)]