17991974

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 96

約数和(自身を含む): 39325440

約数和(自身を除く): 21333466

約数列:

[1, 2, 7, 11, 13, 14, 19, 22, 26, 38, 43, 77, 86, 91, 121, 133, 143, 154, 182, 209, 242, 247, 266, 286, 301, 418, 473, 494, 559, 602, 817, 847, 946, 1001, 1118, 1463, 1573, 1634, 1694, 1729, 2002, 2299, 2717, 2926, 3146, 3311, 3458, 3913, 4598, 5203, 5434, 5719, 6149, 6622, 7826, 8987, 10406, 10621, 11011, 11438, 12298, 16093, 17974, 19019, 21242, 22022, 29887, 32186, 36421, 38038, 43043, 59774, 62909, 67639, 72842, 74347, 86086, 98857, 116831, 125818, 135278, 148694, 197714, 209209, 233662, 418418, 473473, 691999, 817817, 946946, 1285141, 1383998, 1635634, 2570282, 8995987, 17991974]

約数ペア:

[(1, 17991974), (2, 8995987), (7, 2570282), (11, 1635634), (13, 1383998), (14, 1285141), (19, 946946), (22, 817817), (26, 691999), (38, 473473), (43, 418418), (77, 233662), (86, 209209), (91, 197714), (121, 148694), (133, 135278), (143, 125818), (154, 116831), (182, 98857), (209, 86086), (242, 74347), (247, 72842), (266, 67639), (286, 62909), (301, 59774), (418, 43043), (473, 38038), (494, 36421), (559, 32186), (602, 29887), (817, 22022), (847, 21242), (946, 19019), (1001, 17974), (1118, 16093), (1463, 12298), (1573, 11438), (1634, 11011), (1694, 10621), (1729, 10406), (2002, 8987), (2299, 7826), (2717, 6622), (2926, 6149), (3146, 5719), (3311, 5434), (3458, 5203), (3913, 4598)]