28401527

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 10996873

約数列:

[1, 7, 11, 23, 29, 49, 77, 79, 161, 203, 253, 319, 539, 553, 667, 869, 1127, 1421, 1771, 1817, 2233, 2291, 3871, 4669, 6083, 7337, 12397, 12719, 15631, 16037, 19987, 25201, 32683, 42581, 51359, 52693, 89033, 112259, 139909, 176407, 359513, 368851, 579623, 979363, 1234849, 2581957, 4057361, 28401527]

約数ペア:

[(1, 28401527), (7, 4057361), (11, 2581957), (23, 1234849), (29, 979363), (49, 579623), (77, 368851), (79, 359513), (161, 176407), (203, 139909), (253, 112259), (319, 89033), (539, 52693), (553, 51359), (667, 42581), (869, 32683), (1127, 25201), (1421, 19987), (1771, 16037), (1817, 15631), (2233, 12719), (2291, 12397), (3871, 7337), (4669, 6083)]