21297528

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42257}}^1$

素因数の和:42276

約数の個数: 48

約数和(自身を含む): 65922480

約数和(自身を除く): 44624952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42257, 84514, 126771, 169028, 253542, 295799, 338056, 380313, 507084, 591598, 760626, 887397, 1014168, 1183196, 1521252, 1774794, 2366392, 2662191, 3042504, 3549588, 5324382, 7099176, 10648764, 21297528]

約数ペア:

[(1, 21297528), (2, 10648764), (3, 7099176), (4, 5324382), (6, 3549588), (7, 3042504), (8, 2662191), (9, 2366392), (12, 1774794), (14, 1521252), (18, 1183196), (21, 1014168), (24, 887397), (28, 760626), (36, 591598), (42, 507084), (56, 380313), (63, 338056), (72, 295799), (84, 253542), (126, 169028), (168, 126771), (252, 84514), (504, 42257)]