21761519

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1106

約数の個数: 16

約数和(自身を含む): 24814272

約数和(自身を除く): 3052753

約数列:

[1, 13, 23, 73, 299, 949, 997, 1679, 12961, 21827, 22931, 72781, 298103, 946153, 1673963, 21761519]

約数ペア:

[(1, 21761519), (13, 1673963), (23, 946153), (73, 298103), (299, 72781), (949, 22931), (997, 21827), (1679, 12961)]