81585603

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 138101760

約数和(自身を除く): 56516157

約数列:

[1, 3, 9, 11, 27, 33, 53, 71, 73, 99, 159, 213, 219, 297, 477, 583, 639, 657, 781, 803, 1431, 1749, 1917, 1971, 2343, 2409, 3763, 3869, 5183, 5247, 7029, 7227, 11289, 11607, 15549, 15741, 21087, 21681, 33867, 34821, 41393, 42559, 46647, 57013, 101601, 104463, 124179, 127677, 139941, 171039, 274699, 372537, 383031, 513117, 824097, 1117611, 1149093, 1539351, 2472291, 3021689, 7416873, 9065067, 27195201, 81585603]

約数ペア:

[(1, 81585603), (3, 27195201), (9, 9065067), (11, 7416873), (27, 3021689), (33, 2472291), (53, 1539351), (71, 1149093), (73, 1117611), (99, 824097), (159, 513117), (213, 383031), (219, 372537), (297, 274699), (477, 171039), (583, 139941), (639, 127677), (657, 124179), (781, 104463), (803, 101601), (1431, 57013), (1749, 46647), (1917, 42559), (1971, 41393), (2343, 34821), (2409, 33867), (3763, 21681), (3869, 21087), (5183, 15741), (5247, 15549), (7029, 11607), (7227, 11289)]