20892172

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 23540468

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 173, 227, 266, 346, 454, 532, 692, 908, 1211, 1589, 2422, 3178, 3287, 4313, 4844, 6356, 6574, 8626, 13148, 17252, 23009, 30191, 39271, 46018, 60382, 78542, 92036, 120764, 157084, 274897, 549794, 746149, 1099588, 1492298, 2984596, 5223043, 10446086, 20892172]

約数ペア:

[(1, 20892172), (2, 10446086), (4, 5223043), (7, 2984596), (14, 1492298), (19, 1099588), (28, 746149), (38, 549794), (76, 274897), (133, 157084), (173, 120764), (227, 92036), (266, 78542), (346, 60382), (454, 46018), (532, 39271), (692, 30191), (908, 23009), (1211, 17252), (1589, 13148), (2422, 8626), (3178, 6574), (3287, 6356), (4313, 4844)]