19720366

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7109}}^1$

素因数の和:7203

約数の個数: 16

約数和(自身を含む): 31568400

約数和(自身を除く): 11848034

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7109, 14218, 135071, 270142, 518957, 1037914, 9860183, 19720366]

約数ペア:

[(1, 19720366), (2, 9860183), (19, 1037914), (38, 518957), (73, 270142), (146, 135071), (1387, 14218), (2774, 7109)]