21887866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{29}}^2$

素因数の和:104

約数の個数: 72

約数和(自身を含む): 45905184

約数和(自身を除く): 24017318

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 29, 58, 77, 91, 143, 154, 169, 182, 203, 286, 319, 338, 377, 406, 638, 754, 841, 1001, 1183, 1682, 1859, 2002, 2233, 2366, 2639, 3718, 4147, 4466, 4901, 5278, 5887, 8294, 9251, 9802, 10933, 11774, 13013, 18502, 21866, 26026, 29029, 34307, 53911, 58058, 64757, 68614, 76531, 107822, 120263, 129514, 142129, 153062, 240526, 284258, 377377, 754754, 841841, 994903, 1563419, 1683682, 1989806, 3126838, 10943933, 21887866]

約数ペア:

[(1, 21887866), (2, 10943933), (7, 3126838), (11, 1989806), (13, 1683682), (14, 1563419), (22, 994903), (26, 841841), (29, 754754), (58, 377377), (77, 284258), (91, 240526), (143, 153062), (154, 142129), (169, 129514), (182, 120263), (203, 107822), (286, 76531), (319, 68614), (338, 64757), (377, 58058), (406, 53911), (638, 34307), (754, 29029), (841, 26026), (1001, 21866), (1183, 18502), (1682, 13013), (1859, 11774), (2002, 10933), (2233, 9802), (2366, 9251), (2639, 8294), (3718, 5887), (4147, 5278), (4466, 4901)]