21825468

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 63484512

約数和(自身を除く): 41659044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 337, 514, 674, 771, 1011, 1028, 1348, 1542, 1799, 2022, 2313, 2359, 3033, 3084, 3598, 4044, 4626, 4718, 5397, 6066, 7077, 7196, 9252, 9436, 10794, 12132, 14154, 16191, 21231, 21588, 28308, 32382, 42462, 64764, 84924, 86609, 173218, 259827, 346436, 519654, 606263, 779481, 1039308, 1212526, 1558962, 1818789, 2425052, 3117924, 3637578, 5456367, 7275156, 10912734, 21825468]

約数ペア:

[(1, 21825468), (2, 10912734), (3, 7275156), (4, 5456367), (6, 3637578), (7, 3117924), (9, 2425052), (12, 1818789), (14, 1558962), (18, 1212526), (21, 1039308), (28, 779481), (36, 606263), (42, 519654), (63, 346436), (84, 259827), (126, 173218), (252, 86609), (257, 84924), (337, 64764), (514, 42462), (674, 32382), (771, 28308), (1011, 21588), (1028, 21231), (1348, 16191), (1542, 14154), (1799, 12132), (2022, 10794), (2313, 9436), (2359, 9252), (3033, 7196), (3084, 7077), (3598, 6066), (4044, 5397), (4626, 4718)]