19996245

素因数分解:

$3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1031}}^1$

素因数の和:1473

約数の個数: 24

約数和(自身を含む): 34774272

約数和(自身を除く): 14778027

約数列:

[1, 3, 5, 9, 15, 45, 431, 1031, 1293, 2155, 3093, 3879, 5155, 6465, 9279, 15465, 19395, 46395, 444361, 1333083, 2221805, 3999249, 6665415, 19996245]

約数ペア:

[(1, 19996245), (3, 6665415), (5, 3999249), (9, 2221805), (15, 1333083), (45, 444361), (431, 46395), (1031, 19395), (1293, 15465), (2155, 9279), (3093, 6465), (3879, 5155)]