28641861

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 42981120

約数和(自身を除く): 14339259

約数列:

[1, 3, 9, 31, 93, 251, 279, 409, 753, 1227, 2259, 3681, 7781, 12679, 23343, 38037, 70029, 102659, 114111, 307977, 923931, 3182429, 9547287, 28641861]

約数ペア:

[(1, 28641861), (3, 9547287), (9, 3182429), (31, 923931), (93, 307977), (251, 114111), (279, 102659), (409, 70029), (753, 38037), (1227, 23343), (2259, 12679), (3681, 7781)]