21717938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{13523}}^1$

素因数の和:13609

約数の個数: 16

約数和(自身を含む): 36027936

約数和(自身を除く): 14309998

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 13523, 27046, 148753, 297506, 987179, 1974358, 10858969, 21717938]

約数ペア:

[(1, 21717938), (2, 10858969), (11, 1974358), (22, 987179), (73, 297506), (146, 148753), (803, 27046), (1606, 13523)]