28722699

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 46675200

約数和(自身を除く): 17952501

約数列:

[1, 3, 9, 19, 23, 57, 67, 69, 109, 171, 201, 207, 327, 437, 603, 981, 1273, 1311, 1541, 2071, 2507, 3819, 3933, 4623, 6213, 7303, 7521, 11457, 13869, 18639, 21909, 22563, 29279, 47633, 65727, 87837, 138757, 142899, 167969, 263511, 416271, 428697, 503907, 1248813, 1511721, 3191411, 9574233, 28722699]

約数ペア:

[(1, 28722699), (3, 9574233), (9, 3191411), (19, 1511721), (23, 1248813), (57, 503907), (67, 428697), (69, 416271), (109, 263511), (171, 167969), (201, 142899), (207, 138757), (327, 87837), (437, 65727), (603, 47633), (981, 29279), (1273, 22563), (1311, 21909), (1541, 18639), (2071, 13869), (2507, 11457), (3819, 7521), (3933, 7303), (4623, 6213)]