21750668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2089}}^1$

素因数の和:2249

約数の個数: 24

約数和(自身を含む): 40378800

約数和(自身を除く): 18628132

約数列:

[1, 2, 4, 19, 38, 76, 137, 274, 548, 2089, 2603, 4178, 5206, 8356, 10412, 39691, 79382, 158764, 286193, 572386, 1144772, 5437667, 10875334, 21750668]

約数ペア:

[(1, 21750668), (2, 10875334), (4, 5437667), (19, 1144772), (38, 572386), (76, 286193), (137, 158764), (274, 79382), (548, 39691), (2089, 10412), (2603, 8356), (4178, 5206)]