18731284

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 54

約数和(自身を含む): 39185790

約数和(自身を除く): 20454506

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 169, 229, 242, 286, 338, 458, 484, 572, 676, 916, 1573, 1859, 2519, 2977, 3146, 3718, 5038, 5954, 6292, 7436, 10076, 11908, 20449, 27709, 32747, 38701, 40898, 55418, 65494, 77402, 81796, 110836, 130988, 154804, 360217, 425711, 720434, 851422, 1440868, 1702844, 4682821, 9365642, 18731284]

約数ペア:

[(1, 18731284), (2, 9365642), (4, 4682821), (11, 1702844), (13, 1440868), (22, 851422), (26, 720434), (44, 425711), (52, 360217), (121, 154804), (143, 130988), (169, 110836), (229, 81796), (242, 77402), (286, 65494), (338, 55418), (458, 40898), (484, 38701), (572, 32747), (676, 27709), (916, 20449), (1573, 11908), (1859, 10076), (2519, 7436), (2977, 6292), (3146, 5954), (3718, 5038)]