21960484

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{60331}}^1$

素因数の和:60355

約数の個数: 24

約数和(自身を含む): 47300288

約数和(自身を除く): 25339804

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 60331, 120662, 241324, 422317, 784303, 844634, 1568606, 1689268, 3137212, 5490121, 10980242, 21960484]

約数ペア:

[(1, 21960484), (2, 10980242), (4, 5490121), (7, 3137212), (13, 1689268), (14, 1568606), (26, 844634), (28, 784303), (52, 422317), (91, 241324), (182, 120662), (364, 60331)]