20017599

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 31911936

約数和(自身を除く): 11894337

約数列:

[1, 3, 7, 21, 31, 93, 97, 217, 291, 317, 651, 679, 951, 2037, 2219, 3007, 6657, 9021, 9827, 21049, 29481, 30749, 63147, 68789, 92247, 206367, 215243, 645729, 953219, 2859657, 6672533, 20017599]

約数ペア:

[(1, 20017599), (3, 6672533), (7, 2859657), (21, 953219), (31, 645729), (93, 215243), (97, 206367), (217, 92247), (291, 68789), (317, 63147), (651, 30749), (679, 29481), (951, 21049), (2037, 9827), (2219, 9021), (3007, 6657)]