17919604

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{271}}^2$

素因数の和:607

約数の個数: 18

約数和(自身を含む): 31991442

約数和(自身を除く): 14071838

約数列:

[1, 2, 4, 61, 122, 244, 271, 542, 1084, 16531, 33062, 66124, 73441, 146882, 293764, 4479901, 8959802, 17919604]

約数ペア:

[(1, 17919604), (2, 8959802), (4, 4479901), (61, 293764), (122, 146882), (244, 73441), (271, 66124), (542, 33062), (1084, 16531)]