28712541

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 49545216

約数和(自身を除く): 20832675

約数列:

[1, 3, 11, 13, 17, 31, 33, 39, 51, 93, 127, 143, 187, 221, 341, 381, 403, 429, 527, 561, 663, 1023, 1209, 1397, 1581, 1651, 2159, 2431, 3937, 4191, 4433, 4953, 5797, 6477, 6851, 7293, 11811, 13299, 17391, 18161, 20553, 23749, 28067, 43307, 51181, 54483, 66929, 71247, 75361, 84201, 129921, 153543, 200787, 226083, 308737, 562991, 736219, 870077, 926211, 1688973, 2208657, 2610231, 9570847, 28712541]

約数ペア:

[(1, 28712541), (3, 9570847), (11, 2610231), (13, 2208657), (17, 1688973), (31, 926211), (33, 870077), (39, 736219), (51, 562991), (93, 308737), (127, 226083), (143, 200787), (187, 153543), (221, 129921), (341, 84201), (381, 75361), (403, 71247), (429, 66929), (527, 54483), (561, 51181), (663, 43307), (1023, 28067), (1209, 23749), (1397, 20553), (1581, 18161), (1651, 17391), (2159, 13299), (2431, 11811), (3937, 7293), (4191, 6851), (4433, 6477), (4953, 5797)]