21320698

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{80153}}^1$

素因数の和:80181

約数の個数: 16

約数和(自身を含む): 38473920

約数和(自身を除く): 17153222

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 80153, 160306, 561071, 1122142, 1522907, 3045814, 10660349, 21320698]

約数ペア:

[(1, 21320698), (2, 10660349), (7, 3045814), (14, 1522907), (19, 1122142), (38, 561071), (133, 160306), (266, 80153)]