21304998

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 36755802

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 31, 33, 39, 54, 62, 66, 78, 89, 93, 99, 117, 143, 178, 186, 198, 234, 267, 279, 286, 297, 341, 351, 403, 429, 534, 558, 594, 682, 702, 801, 806, 837, 858, 979, 1023, 1157, 1209, 1287, 1602, 1674, 1958, 2046, 2314, 2403, 2418, 2574, 2759, 2937, 3069, 3471, 3627, 3861, 4433, 4806, 5518, 5874, 6138, 6942, 7254, 7722, 8277, 8811, 8866, 9207, 10413, 10881, 12727, 13299, 16554, 17622, 18414, 20826, 21762, 24831, 25454, 26433, 26598, 30349, 31239, 35867, 38181, 39897, 49662, 52866, 60698, 62478, 71734, 74493, 76362, 79794, 91047, 107601, 114543, 119691, 148986, 182094, 215202, 229086, 239382, 273141, 322803, 343629, 394537, 546282, 645606, 687258, 789074, 819423, 968409, 1183611, 1638846, 1936818, 2367222, 3550833, 7101666, 10652499, 21304998]

約数ペア:

[(1, 21304998), (2, 10652499), (3, 7101666), (6, 3550833), (9, 2367222), (11, 1936818), (13, 1638846), (18, 1183611), (22, 968409), (26, 819423), (27, 789074), (31, 687258), (33, 645606), (39, 546282), (54, 394537), (62, 343629), (66, 322803), (78, 273141), (89, 239382), (93, 229086), (99, 215202), (117, 182094), (143, 148986), (178, 119691), (186, 114543), (198, 107601), (234, 91047), (267, 79794), (279, 76362), (286, 74493), (297, 71734), (341, 62478), (351, 60698), (403, 52866), (429, 49662), (534, 39897), (558, 38181), (594, 35867), (682, 31239), (702, 30349), (801, 26598), (806, 26433), (837, 25454), (858, 24831), (979, 21762), (1023, 20826), (1157, 18414), (1209, 17622), (1287, 16554), (1602, 13299), (1674, 12727), (1958, 10881), (2046, 10413), (2314, 9207), (2403, 8866), (2418, 8811), (2574, 8277), (2759, 7722), (2937, 7254), (3069, 6942), (3471, 6138), (3627, 5874), (3861, 5518), (4433, 4806)]