20512459821

素因数分解:

$3^1\times 7^2\times {\mathrm{1621}}^1\times {\mathrm{86083}}^1$

素因数の和:87721

約数の個数: 24

約数和(自身を含む): 31835240544

約数和(自身を除く): 11322780723

約数列:

[1, 3, 7, 21, 49, 147, 1621, 4863, 11347, 34041, 79429, 86083, 238287, 258249, 602581, 1807743, 4218067, 12654201, 139540543, 418621629, 976783801, 2930351403, 6837486607, 20512459821]

約数ペア:

[(1, 20512459821), (3, 6837486607), (7, 2930351403), (21, 976783801), (49, 418621629), (147, 139540543), (1621, 12654201), (4863, 4218067), (11347, 1807743), (34041, 602581), (79429, 258249), (86083, 238287)]