21811609984

素因数分解:

$2^7\times {\mathrm{137}}^1\times {\mathrm{1243819}}^1$

素因数の和:1243970

約数の個数: 32

約数和(自身を含む): 43770025800

約数和(自身を除く): 21958415816

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 274, 548, 1096, 2192, 4384, 8768, 17536, 1243819, 2487638, 4975276, 9950552, 19901104, 39802208, 79604416, 159208832, 170403203, 340806406, 681612812, 1363225624, 2726451248, 5452902496, 10905804992, 21811609984]

約数ペア:

[(1, 21811609984), (2, 10905804992), (4, 5452902496), (8, 2726451248), (16, 1363225624), (32, 681612812), (64, 340806406), (128, 170403203), (137, 159208832), (274, 79604416), (548, 39802208), (1096, 19901104), (2192, 9950552), (4384, 4975276), (8768, 2487638), (17536, 1243819)]