215291065

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{355853}}^1$

素因数の和:355880

約数の個数: 12

約数和(自身を含む): 283971492

約数和(自身を除く): 68680427

約数列:

[1, 5, 11, 55, 121, 605, 355853, 1779265, 3914383, 19571915, 43058213, 215291065]

約数ペア:

[(1, 215291065), (5, 43058213), (11, 19571915), (55, 3914383), (121, 1779265), (605, 355853)]