18404841

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9631}}^1$

素因数の和:9661

約数の個数: 24

約数和(自身を含む): 30745344

約数和(自身を除く): 12340503

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9631, 28893, 67417, 125203, 202251, 375609, 471919, 876421, 1415757, 2629263, 6134947, 18404841]

約数ペア:

[(1, 18404841), (3, 6134947), (7, 2629263), (13, 1415757), (21, 876421), (39, 471919), (49, 375609), (91, 202251), (147, 125203), (273, 67417), (637, 28893), (1911, 9631)]