21971409

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{941}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 30174144

約数和(自身を除く): 8202735

約数列:

[1, 3, 43, 129, 181, 543, 941, 2823, 7783, 23349, 40463, 121389, 170321, 510963, 7323803, 21971409]

約数ペア:

[(1, 21971409), (3, 7323803), (43, 510963), (129, 170321), (181, 121389), (543, 40463), (941, 23349), (2823, 7783)]