21645533

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7673}}^1$

素因数の和:7724

約数の個数: 16

約数和(自身を含む): 27503616

約数和(自身を除く): 5858083

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7673, 53711, 99749, 237863, 698243, 1665041, 3092219, 21645533]

約数ペア:

[(1, 21645533), (7, 3092219), (13, 1665041), (31, 698243), (91, 237863), (217, 99749), (403, 53711), (2821, 7673)]