28630701

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 49121280

約数和(自身を除く): 20490579

約数列:

[1, 3, 9, 11, 19, 31, 33, 57, 93, 99, 171, 209, 279, 341, 491, 589, 627, 1023, 1473, 1767, 1881, 3069, 4419, 5301, 5401, 6479, 9329, 15221, 16203, 19437, 27987, 45663, 48609, 58311, 83961, 102619, 136989, 167431, 289199, 307857, 502293, 867597, 923571, 1506879, 2602791, 3181189, 9543567, 28630701]

約数ペア:

[(1, 28630701), (3, 9543567), (9, 3181189), (11, 2602791), (19, 1506879), (31, 923571), (33, 867597), (57, 502293), (93, 307857), (99, 289199), (171, 167431), (209, 136989), (279, 102619), (341, 83961), (491, 58311), (589, 48609), (627, 45663), (1023, 27987), (1473, 19437), (1767, 16203), (1881, 15221), (3069, 9329), (4419, 6479), (5301, 5401)]