28903203

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 52377600

約数和(自身を除く): 23474397

約数列:

[1, 3, 7, 9, 21, 23, 27, 61, 63, 69, 109, 161, 183, 189, 207, 327, 427, 483, 549, 621, 763, 981, 1281, 1403, 1449, 1647, 2289, 2507, 2943, 3843, 4209, 4347, 6649, 6867, 7521, 9821, 11529, 12627, 17549, 19947, 20601, 22563, 29463, 37881, 46543, 52647, 59841, 67689, 88389, 139629, 152927, 157941, 179523, 265167, 418887, 458781, 473823, 1070489, 1256661, 1376343, 3211467, 4129029, 9634401, 28903203]

約数ペア:

[(1, 28903203), (3, 9634401), (7, 4129029), (9, 3211467), (21, 1376343), (23, 1256661), (27, 1070489), (61, 473823), (63, 458781), (69, 418887), (109, 265167), (161, 179523), (183, 157941), (189, 152927), (207, 139629), (327, 88389), (427, 67689), (483, 59841), (549, 52647), (621, 46543), (763, 37881), (981, 29463), (1281, 22563), (1403, 20601), (1449, 19947), (1647, 17549), (2289, 12627), (2507, 11529), (2943, 9821), (3843, 7521), (4209, 6867), (4347, 6649)]