16571555

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 28019376

約数和(自身を除く): 11447821

約数列:

[1, 5, 7, 11, 13, 35, 43, 49, 55, 65, 77, 91, 121, 143, 215, 245, 301, 385, 455, 473, 539, 559, 605, 637, 715, 847, 1001, 1505, 1573, 2107, 2365, 2695, 2795, 3185, 3311, 3913, 4235, 5005, 5203, 5929, 6149, 7007, 7865, 10535, 11011, 16555, 19565, 23177, 26015, 27391, 29645, 30745, 35035, 36421, 43043, 55055, 67639, 77077, 115885, 136955, 182105, 215215, 254947, 301301, 338195, 385385, 473473, 1274735, 1506505, 2367365, 3314311, 16571555]

約数ペア:

[(1, 16571555), (5, 3314311), (7, 2367365), (11, 1506505), (13, 1274735), (35, 473473), (43, 385385), (49, 338195), (55, 301301), (65, 254947), (77, 215215), (91, 182105), (121, 136955), (143, 115885), (215, 77077), (245, 67639), (301, 55055), (385, 43043), (455, 36421), (473, 35035), (539, 30745), (559, 29645), (605, 27391), (637, 26015), (715, 23177), (847, 19565), (1001, 16555), (1505, 11011), (1573, 10535), (2107, 7865), (2365, 7007), (2695, 6149), (2795, 5929), (3185, 5203), (3311, 5005), (3913, 4235)]