21506822

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7753}}^1$

素因数の和:7847

約数の個数: 16

約数和(自身を含む): 34427760

約数和(自身を除く): 12920938

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7753, 15506, 147307, 294614, 565969, 1131938, 10753411, 21506822]

約数ペア:

[(1, 21506822), (2, 10753411), (19, 1131938), (38, 565969), (73, 294614), (146, 147307), (1387, 15506), (2774, 7753)]