28505906

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 55200852

約数和(自身を除く): 26694946

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 41, 82, 121, 143, 169, 187, 221, 242, 286, 338, 374, 442, 451, 533, 697, 902, 1066, 1394, 1573, 1859, 2057, 2431, 2873, 3146, 3718, 4114, 4862, 4961, 5746, 5863, 6929, 7667, 9061, 9922, 11726, 13858, 15334, 18122, 20449, 26741, 31603, 40898, 53482, 63206, 64493, 76219, 84337, 99671, 117793, 128986, 152438, 168674, 199342, 235586, 347633, 695266, 838409, 1096381, 1295723, 1676818, 2192762, 2591446, 14252953, 28505906]

約数ペア:

[(1, 28505906), (2, 14252953), (11, 2591446), (13, 2192762), (17, 1676818), (22, 1295723), (26, 1096381), (34, 838409), (41, 695266), (82, 347633), (121, 235586), (143, 199342), (169, 168674), (187, 152438), (221, 128986), (242, 117793), (286, 99671), (338, 84337), (374, 76219), (442, 64493), (451, 63206), (533, 53482), (697, 40898), (902, 31603), (1066, 26741), (1394, 20449), (1573, 18122), (1859, 15334), (2057, 13858), (2431, 11726), (2873, 9922), (3146, 9061), (3718, 7667), (4114, 6929), (4862, 5863), (4961, 5746)]