19866548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4603}}^1$

素因数の和:4703

約数の個数: 24

約数和(自身を含む): 37900128

約数和(自身を除く): 18033580

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4603, 9206, 18412, 59839, 119678, 239356, 382049, 764098, 1528196, 4966637, 9933274, 19866548]

約数ペア:

[(1, 19866548), (2, 9933274), (4, 4966637), (13, 1528196), (26, 764098), (52, 382049), (83, 239356), (166, 119678), (332, 59839), (1079, 18412), (2158, 9206), (4316, 4603)]