61278217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 87910272

約数和(自身を除く): 26632055

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 169, 187, 221, 277, 1001, 1183, 1309, 1547, 1859, 1939, 2431, 2873, 3047, 3601, 4709, 13013, 17017, 20111, 21329, 25207, 31603, 32963, 39611, 46813, 51799, 61217, 221221, 277277, 327691, 362593, 428519, 514943, 673387, 795821, 3604601, 4713709, 5570747, 8754031, 61278217]

約数ペア:

[(1, 61278217), (7, 8754031), (11, 5570747), (13, 4713709), (17, 3604601), (77, 795821), (91, 673387), (119, 514943), (143, 428519), (169, 362593), (187, 327691), (221, 277277), (277, 221221), (1001, 61217), (1183, 51799), (1309, 46813), (1547, 39611), (1859, 32963), (1939, 31603), (2431, 25207), (2873, 21329), (3047, 20111), (3601, 17017), (4709, 13013)]