1640343771

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{6827}}^1$

素因数の和:7656

約数の個数: 32

約数和(自身を含む): 2654726400

約数和(自身を除く): 1014382629

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 809, 2427, 6827, 7281, 8899, 20481, 21843, 26697, 61443, 75097, 80091, 184329, 225291, 240273, 675873, 2027619, 5523043, 16569129, 49707387, 60753473, 149122161, 182260419, 546781257, 1640343771]

約数ペア:

[(1, 1640343771), (3, 546781257), (9, 182260419), (11, 149122161), (27, 60753473), (33, 49707387), (99, 16569129), (297, 5523043), (809, 2027619), (2427, 675873), (6827, 240273), (7281, 225291), (8899, 184329), (20481, 80091), (21843, 75097), (26697, 61443)]