21178682

素因数分解:

$2^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1097}}^1$

素因数の和:1310

約数の個数: 24

約数和(自身を含む): 37176084

約数和(自身を除く): 15997402

約数列:

[1, 2, 7, 14, 49, 98, 197, 394, 1097, 1379, 2194, 2758, 7679, 9653, 15358, 19306, 53753, 107506, 216109, 432218, 1512763, 3025526, 10589341, 21178682]

約数ペア:

[(1, 21178682), (2, 10589341), (7, 3025526), (14, 1512763), (49, 432218), (98, 216109), (197, 107506), (394, 53753), (1097, 19306), (1379, 15358), (2194, 9653), (2758, 7679)]