20838699

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^2$

素因数の和:224

約数の個数: 36

約数和(自身を含む): 35498736

約数和(自身を除く): 14660037

約数列:

[1, 3, 7, 9, 21, 53, 63, 79, 159, 237, 371, 477, 553, 711, 1113, 1659, 3339, 4187, 4977, 6241, 12561, 18723, 29309, 37683, 43687, 56169, 87927, 131061, 263781, 330773, 393183, 992319, 2315411, 2976957, 6946233, 20838699]

約数ペア:

[(1, 20838699), (3, 6946233), (7, 2976957), (9, 2315411), (21, 992319), (53, 393183), (63, 330773), (79, 263781), (159, 131061), (237, 87927), (371, 56169), (477, 43687), (553, 37683), (711, 29309), (1113, 18723), (1659, 12561), (3339, 6241), (4187, 4977)]