221570668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{63743}}^1$

素因数の和:63837

約数の個数: 24

約数和(自身を含む): 428359680

約数和(自身を除く): 206789012

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 63743, 127486, 254972, 701173, 1402346, 2804692, 5035697, 10071394, 20142788, 55392667, 110785334, 221570668]

約数ペア:

[(1, 221570668), (2, 110785334), (4, 55392667), (11, 20142788), (22, 10071394), (44, 5035697), (79, 2804692), (158, 1402346), (316, 701173), (869, 254972), (1738, 127486), (3476, 63743)]