21553521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{3911}}^1$

素因数の和:4092

約数の個数: 16

約数和(自身を含む): 31546368

約数和(自身を除く): 9992847

約数列:

[1, 3, 11, 33, 167, 501, 1837, 3911, 5511, 11733, 43021, 129063, 653137, 1959411, 7184507, 21553521]

約数ペア:

[(1, 21553521), (3, 7184507), (11, 1959411), (33, 653137), (167, 129063), (501, 43021), (1837, 11733), (3911, 5511)]