17987684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 38737440

約数和(自身を除く): 20749756

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 59, 82, 118, 143, 164, 169, 236, 286, 338, 451, 533, 572, 649, 676, 767, 902, 1066, 1298, 1534, 1804, 1859, 2132, 2419, 2596, 3068, 3718, 4838, 5863, 6929, 7436, 8437, 9676, 9971, 11726, 13858, 16874, 19942, 23452, 26609, 27716, 31447, 33748, 39884, 53218, 62894, 76219, 106436, 109681, 125788, 152438, 219362, 304876, 345917, 408811, 438724, 691834, 817622, 1383668, 1635244, 4496921, 8993842, 17987684]

約数ペア:

[(1, 17987684), (2, 8993842), (4, 4496921), (11, 1635244), (13, 1383668), (22, 817622), (26, 691834), (41, 438724), (44, 408811), (52, 345917), (59, 304876), (82, 219362), (118, 152438), (143, 125788), (164, 109681), (169, 106436), (236, 76219), (286, 62894), (338, 53218), (451, 39884), (533, 33748), (572, 31447), (649, 27716), (676, 26609), (767, 23452), (902, 19942), (1066, 16874), (1298, 13858), (1534, 11726), (1804, 9971), (1859, 9676), (2132, 8437), (2419, 7436), (2596, 6929), (3068, 5863), (3718, 4838)]