18984966

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 128

約数和(自身を含む): 53222400

約数和(自身を除く): 34237434

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 29, 33, 39, 42, 58, 66, 77, 78, 87, 91, 109, 143, 154, 174, 182, 203, 218, 231, 273, 286, 319, 327, 377, 406, 429, 462, 546, 609, 638, 654, 754, 763, 858, 957, 1001, 1131, 1199, 1218, 1417, 1526, 1914, 2002, 2233, 2262, 2289, 2398, 2639, 2834, 3003, 3161, 3597, 4147, 4251, 4466, 4578, 5278, 6006, 6322, 6699, 7194, 7917, 8294, 8393, 8502, 9483, 9919, 12441, 13398, 15587, 15834, 16786, 18966, 19838, 22127, 24882, 25179, 29029, 29757, 31174, 34771, 41093, 44254, 46761, 50358, 58058, 59514, 66381, 69542, 82186, 87087, 93522, 104313, 109109, 123279, 132762, 174174, 208626, 218218, 243397, 246558, 287651, 327327, 452023, 486794, 575302, 654654, 730191, 862953, 904046, 1356069, 1460382, 1725906, 2712138, 3164161, 6328322, 9492483, 18984966]

約数ペア:

[(1, 18984966), (2, 9492483), (3, 6328322), (6, 3164161), (7, 2712138), (11, 1725906), (13, 1460382), (14, 1356069), (21, 904046), (22, 862953), (26, 730191), (29, 654654), (33, 575302), (39, 486794), (42, 452023), (58, 327327), (66, 287651), (77, 246558), (78, 243397), (87, 218218), (91, 208626), (109, 174174), (143, 132762), (154, 123279), (174, 109109), (182, 104313), (203, 93522), (218, 87087), (231, 82186), (273, 69542), (286, 66381), (319, 59514), (327, 58058), (377, 50358), (406, 46761), (429, 44254), (462, 41093), (546, 34771), (609, 31174), (638, 29757), (654, 29029), (754, 25179), (763, 24882), (858, 22127), (957, 19838), (1001, 18966), (1131, 16786), (1199, 15834), (1218, 15587), (1417, 13398), (1526, 12441), (1914, 9919), (2002, 9483), (2233, 8502), (2262, 8393), (2289, 8294), (2398, 7917), (2639, 7194), (2834, 6699), (3003, 6322), (3161, 6006), (3597, 5278), (4147, 4578), (4251, 4466)]