20459972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17107}}^1$

素因数の和:17147

約数の個数: 24

約数和(自身を含む): 40238016

約数和(自身を除く): 19778044

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 17107, 34214, 68428, 222391, 393461, 444782, 786922, 889564, 1573844, 5114993, 10229986, 20459972]

約数ペア:

[(1, 20459972), (2, 10229986), (4, 5114993), (13, 1573844), (23, 889564), (26, 786922), (46, 444782), (52, 393461), (92, 222391), (299, 68428), (598, 34214), (1196, 17107)]