21020686

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{827}}^1$

素因数の和:1079

約数の個数: 16

約数和(自身を含む): 32192640

約数和(自身を除く): 11171954

約数列:

[1, 2, 71, 142, 179, 358, 827, 1654, 12709, 25418, 58717, 117434, 148033, 296066, 10510343, 21020686]

約数ペア:

[(1, 21020686), (2, 10510343), (71, 296066), (142, 148033), (179, 117434), (358, 58717), (827, 25418), (1654, 12709)]