21820024

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{40709}}^1$

素因数の和:40782

約数の個数: 16

約数和(自身を含む): 41524200

約数和(自身を除く): 19704176

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 40709, 81418, 162836, 325672, 2727503, 5455006, 10910012, 21820024]

約数ペア:

[(1, 21820024), (2, 10910012), (4, 5455006), (8, 2727503), (67, 325672), (134, 162836), (268, 81418), (536, 40709)]