21024020

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7673}}^1$

素因数の和:7819

約数の個数: 24

約数和(自身を含む): 44478504

約数和(自身を除く): 23454484

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7673, 15346, 30692, 38365, 76730, 153460, 1051201, 2102402, 4204804, 5256005, 10512010, 21024020]

約数ペア:

[(1, 21024020), (2, 10512010), (4, 5256005), (5, 4204804), (10, 2102402), (20, 1051201), (137, 153460), (274, 76730), (548, 38365), (685, 30692), (1370, 15346), (2740, 7673)]