17981866

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67601}}^1$

素因数の和:67629

約数の個数: 16

約数和(自身を含む): 32448960

約数和(自身を除く): 14467094

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 67601, 135202, 473207, 946414, 1284419, 2568838, 8990933, 17981866]

約数ペア:

[(1, 17981866), (2, 8990933), (7, 2568838), (14, 1284419), (19, 946414), (38, 473207), (133, 135202), (266, 67601)]