21001672

素因数分解:

$2^3\times {\mathrm{251}}^1\times {\mathrm{10459}}^1$

素因数の和:10716

約数の個数: 16

約数和(自身を含む): 39538800

約数和(自身を除く): 18537128

約数列:

[1, 2, 4, 8, 251, 502, 1004, 2008, 10459, 20918, 41836, 83672, 2625209, 5250418, 10500836, 21001672]

約数ペア:

[(1, 21001672), (2, 10500836), (4, 5250418), (8, 2625209), (251, 83672), (502, 41836), (1004, 20918), (2008, 10459)]