28851823

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 14048657

約数列:

[1, 7, 11, 13, 19, 37, 41, 77, 91, 133, 143, 209, 247, 259, 287, 407, 451, 481, 533, 703, 779, 1001, 1463, 1517, 1729, 2717, 2849, 3157, 3367, 3731, 4921, 5291, 5453, 5863, 7733, 8569, 9139, 10127, 10619, 16687, 19019, 19721, 28823, 37037, 41041, 54131, 59983, 63973, 70889, 100529, 111397, 116809, 138047, 201761, 216931, 317053, 374699, 703703, 779779, 1518517, 2219371, 2622893, 4121689, 28851823]

約数ペア:

[(1, 28851823), (7, 4121689), (11, 2622893), (13, 2219371), (19, 1518517), (37, 779779), (41, 703703), (77, 374699), (91, 317053), (133, 216931), (143, 201761), (209, 138047), (247, 116809), (259, 111397), (287, 100529), (407, 70889), (451, 63973), (481, 59983), (533, 54131), (703, 41041), (779, 37037), (1001, 28823), (1463, 19721), (1517, 19019), (1729, 16687), (2717, 10619), (2849, 10127), (3157, 9139), (3367, 8569), (3731, 7733), (4921, 5863), (5291, 5453)]