638974791

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{6343}}^1$

素因数の和:6413

約数の個数: 64

約数和(自身を含む): 1193687040

約数和(自身を除く): 554712249

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 41, 63, 91, 117, 123, 189, 273, 287, 351, 369, 533, 819, 861, 1107, 1599, 2457, 2583, 3731, 4797, 6343, 7749, 11193, 14391, 19029, 33579, 44401, 57087, 82459, 100737, 133203, 171261, 247377, 260063, 399609, 577213, 742131, 780189, 1198827, 1731639, 1820441, 2226393, 2340567, 3380819, 5194917, 5461323, 7021701, 10142457, 15584751, 16383969, 23665733, 30427371, 49151907, 70997199, 91282113, 212991597, 638974791]

約数ペア:

[(1, 638974791), (3, 212991597), (7, 91282113), (9, 70997199), (13, 49151907), (21, 30427371), (27, 23665733), (39, 16383969), (41, 15584751), (63, 10142457), (91, 7021701), (117, 5461323), (123, 5194917), (189, 3380819), (273, 2340567), (287, 2226393), (351, 1820441), (369, 1731639), (533, 1198827), (819, 780189), (861, 742131), (1107, 577213), (1599, 399609), (2457, 260063), (2583, 247377), (3731, 171261), (4797, 133203), (6343, 100737), (7749, 82459), (11193, 57087), (14391, 44401), (19029, 33579)]