21117358

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{5531}}^1$

素因数の和:5639

約数の個数: 16

約数和(自身を含む): 33457536

約数和(自身を除く): 12340178

約数列:

[1, 2, 23, 46, 83, 166, 1909, 3818, 5531, 11062, 127213, 254426, 459073, 918146, 10558679, 21117358]

約数ペア:

[(1, 21117358), (2, 10558679), (23, 918146), (46, 459073), (83, 254426), (166, 127213), (1909, 11062), (3818, 5531)]