20918898

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:91

約数の個数: 192

約数和(自身を含む): 64576512

約数和(自身を除く): 43657614

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 27, 33, 39, 42, 43, 54, 63, 66, 77, 78, 81, 86, 91, 99, 117, 126, 129, 143, 154, 162, 182, 189, 198, 231, 234, 243, 258, 273, 286, 297, 301, 351, 378, 387, 429, 462, 473, 486, 546, 559, 567, 594, 602, 693, 702, 774, 819, 858, 891, 903, 946, 1001, 1053, 1118, 1134, 1161, 1287, 1386, 1419, 1638, 1677, 1701, 1782, 1806, 2002, 2079, 2106, 2322, 2457, 2574, 2673, 2709, 2838, 3003, 3159, 3311, 3354, 3402, 3483, 3861, 3913, 4158, 4257, 4914, 5031, 5346, 5418, 6006, 6149, 6237, 6318, 6622, 6966, 7371, 7722, 7826, 8127, 8514, 9009, 9933, 10062, 10449, 11583, 11739, 12298, 12474, 12771, 14742, 15093, 16254, 18018, 18447, 18711, 19866, 20898, 22113, 23166, 23478, 24381, 25542, 27027, 29799, 30186, 34749, 35217, 36894, 37422, 38313, 43043, 44226, 45279, 48762, 54054, 55341, 59598, 69498, 70434, 73143, 76626, 81081, 86086, 89397, 90558, 105651, 110682, 114939, 129129, 135837, 146286, 162162, 166023, 178794, 211302, 229878, 243243, 258258, 268191, 271674, 316953, 332046, 387387, 486486, 498069, 536382, 633906, 774774, 804573, 950859, 996138, 1162161, 1494207, 1609146, 1901718, 2324322, 2988414, 3486483, 6972966, 10459449, 20918898]

約数ペア:

[(1, 20918898), (2, 10459449), (3, 6972966), (6, 3486483), (7, 2988414), (9, 2324322), (11, 1901718), (13, 1609146), (14, 1494207), (18, 1162161), (21, 996138), (22, 950859), (26, 804573), (27, 774774), (33, 633906), (39, 536382), (42, 498069), (43, 486486), (54, 387387), (63, 332046), (66, 316953), (77, 271674), (78, 268191), (81, 258258), (86, 243243), (91, 229878), (99, 211302), (117, 178794), (126, 166023), (129, 162162), (143, 146286), (154, 135837), (162, 129129), (182, 114939), (189, 110682), (198, 105651), (231, 90558), (234, 89397), (243, 86086), (258, 81081), (273, 76626), (286, 73143), (297, 70434), (301, 69498), (351, 59598), (378, 55341), (387, 54054), (429, 48762), (462, 45279), (473, 44226), (486, 43043), (546, 38313), (559, 37422), (567, 36894), (594, 35217), (602, 34749), (693, 30186), (702, 29799), (774, 27027), (819, 25542), (858, 24381), (891, 23478), (903, 23166), (946, 22113), (1001, 20898), (1053, 19866), (1118, 18711), (1134, 18447), (1161, 18018), (1287, 16254), (1386, 15093), (1419, 14742), (1638, 12771), (1677, 12474), (1701, 12298), (1782, 11739), (1806, 11583), (2002, 10449), (2079, 10062), (2106, 9933), (2322, 9009), (2457, 8514), (2574, 8127), (2673, 7826), (2709, 7722), (2838, 7371), (3003, 6966), (3159, 6622), (3311, 6318), (3354, 6237), (3402, 6149), (3483, 6006), (3861, 5418), (3913, 5346), (4158, 5031), (4257, 4914)]