21000124144

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{103813}}^1$

素因数の和:104137

約数の個数: 40

約数和(自身を含む): 41708312640

約数和(自身を除く): 20708188496

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 269, 376, 538, 752, 1076, 2152, 4304, 12643, 25286, 50572, 101144, 103813, 202288, 207626, 415252, 830504, 1661008, 4879211, 9758422, 19516844, 27925697, 39033688, 55851394, 78067376, 111702788, 223405576, 446811152, 1312507759, 2625015518, 5250031036, 10500062072, 21000124144]

約数ペア:

[(1, 21000124144), (2, 10500062072), (4, 5250031036), (8, 2625015518), (16, 1312507759), (47, 446811152), (94, 223405576), (188, 111702788), (269, 78067376), (376, 55851394), (538, 39033688), (752, 27925697), (1076, 19516844), (2152, 9758422), (4304, 4879211), (12643, 1661008), (25286, 830504), (50572, 415252), (101144, 207626), (103813, 202288)]