28904967

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1217}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 53202240

約数和(自身を除く): 24297273

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1217, 1827, 2639, 3393, 3651, 7917, 8519, 10953, 15821, 23751, 25557, 35293, 47463, 76671, 105879, 110747, 142389, 247051, 317637, 332241, 458809, 741153, 996723, 1376427, 2223459, 3211663, 4129281, 9634989, 28904967]

約数ペア:

[(1, 28904967), (3, 9634989), (7, 4129281), (9, 3211663), (13, 2223459), (21, 1376427), (29, 996723), (39, 741153), (63, 458809), (87, 332241), (91, 317637), (117, 247051), (203, 142389), (261, 110747), (273, 105879), (377, 76671), (609, 47463), (819, 35293), (1131, 25557), (1217, 23751), (1827, 15821), (2639, 10953), (3393, 8519), (3651, 7917)]