207978219

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 315247680

約数和(自身を除く): 107269461

約数列:

[1, 3, 9, 27, 61, 183, 197, 549, 591, 641, 1647, 1773, 1923, 5319, 5769, 12017, 17307, 36051, 39101, 108153, 117303, 126277, 324459, 351909, 378831, 1055727, 1136493, 3409479, 7702897, 23108691, 69326073, 207978219]

約数ペア:

[(1, 207978219), (3, 69326073), (9, 23108691), (27, 7702897), (61, 3409479), (183, 1136493), (197, 1055727), (549, 378831), (591, 351909), (641, 324459), (1647, 126277), (1773, 117303), (1923, 108153), (5319, 39101), (5769, 36051), (12017, 17307)]