20489343

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{719}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12688257

約数列:

[1, 3, 7, 21, 23, 59, 69, 161, 177, 413, 483, 719, 1239, 1357, 2157, 4071, 5033, 9499, 15099, 16537, 28497, 42421, 49611, 115759, 127263, 296947, 347277, 890841, 975683, 2927049, 6829781, 20489343]

約数ペア:

[(1, 20489343), (3, 6829781), (7, 2927049), (21, 975683), (23, 890841), (59, 347277), (69, 296947), (161, 127263), (177, 115759), (413, 49611), (483, 42421), (719, 28497), (1239, 16537), (1357, 15099), (2157, 9499), (4071, 5033)]