81866407

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4273}}^1$

素因数の和:4327

約数の個数: 24

約数和(自身を含む): 105242976

約数和(自身を除く): 23376569

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1127, 2737, 4273, 19159, 29911, 72641, 98279, 209377, 508487, 687953, 1670743, 3559409, 4815671, 11695201, 81866407]

約数ペア:

[(1, 81866407), (7, 11695201), (17, 4815671), (23, 3559409), (49, 1670743), (119, 687953), (161, 508487), (391, 209377), (833, 98279), (1127, 72641), (2737, 29911), (4273, 19159)]