20723144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199261}}^1$

素因数の和:199280

約数の個数: 16

約数和(自身を含む): 41845020

約数和(自身を除く): 21121876

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199261, 398522, 797044, 1594088, 2590393, 5180786, 10361572, 20723144]

約数ペア:

[(1, 20723144), (2, 10361572), (4, 5180786), (8, 2590393), (13, 1594088), (26, 797044), (52, 398522), (104, 199261)]