21000304796

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{1571}}^1\times {\mathrm{81509}}^1$

素因数の和:83125

約数の個数: 24

約数和(自身を含む): 37671313680

約数和(自身を除く): 16671008884

約数列:

[1, 2, 4, 41, 82, 164, 1571, 3142, 6284, 64411, 81509, 128822, 163018, 257644, 326036, 3341869, 6683738, 13367476, 128050639, 256101278, 512202556, 5250076199, 10500152398, 21000304796]

約数ペア:

[(1, 21000304796), (2, 10500152398), (4, 5250076199), (41, 512202556), (82, 256101278), (164, 128050639), (1571, 13367476), (3142, 6683738), (6284, 3341869), (64411, 326036), (81509, 257644), (128822, 163018)]