20390914

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8009}}^1$

素因数の和:8097

約数の個数: 16

約数和(自身を含む): 32680800

約数和(自身を除く): 12289886

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8009, 16018, 152171, 304342, 536603, 1073206, 10195457, 20390914]

約数ペア:

[(1, 20390914), (2, 10195457), (19, 1073206), (38, 536603), (67, 304342), (134, 152171), (1273, 16018), (2546, 8009)]