20439934

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{2143}}^1$

素因数の和:2415

約数の個数: 16

約数和(自身を含む): 32417280

約数和(自身を除く): 11977346

約数列:

[1, 2, 19, 38, 251, 502, 2143, 4286, 4769, 9538, 40717, 81434, 537893, 1075786, 10219967, 20439934]

約数ペア:

[(1, 20439934), (2, 10219967), (19, 1075786), (38, 537893), (251, 81434), (502, 40717), (2143, 9538), (4286, 4769)]