21574476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 69957888

約数和(自身を除く): 48383412

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 43, 44, 63, 66, 77, 84, 86, 99, 126, 129, 132, 154, 172, 181, 198, 231, 252, 258, 301, 308, 362, 387, 396, 462, 473, 516, 543, 602, 693, 724, 774, 903, 924, 946, 1086, 1204, 1267, 1386, 1419, 1548, 1629, 1806, 1892, 1991, 2172, 2534, 2709, 2772, 2838, 3258, 3311, 3612, 3801, 3982, 4257, 5068, 5418, 5676, 5973, 6516, 6622, 7602, 7783, 7964, 8514, 9933, 10836, 11403, 11946, 13244, 13937, 15204, 15566, 17028, 17919, 19866, 22806, 23349, 23892, 27874, 29799, 31132, 35838, 39732, 41811, 45612, 46698, 54481, 55748, 59598, 70047, 71676, 83622, 85613, 93396, 108962, 119196, 125433, 140094, 163443, 167244, 171226, 217924, 250866, 256839, 280188, 326886, 342452, 490329, 501732, 513678, 599291, 653772, 770517, 980658, 1027356, 1198582, 1541034, 1797873, 1961316, 2397164, 3082068, 3595746, 5393619, 7191492, 10787238, 21574476]

約数ペア:

[(1, 21574476), (2, 10787238), (3, 7191492), (4, 5393619), (6, 3595746), (7, 3082068), (9, 2397164), (11, 1961316), (12, 1797873), (14, 1541034), (18, 1198582), (21, 1027356), (22, 980658), (28, 770517), (33, 653772), (36, 599291), (42, 513678), (43, 501732), (44, 490329), (63, 342452), (66, 326886), (77, 280188), (84, 256839), (86, 250866), (99, 217924), (126, 171226), (129, 167244), (132, 163443), (154, 140094), (172, 125433), (181, 119196), (198, 108962), (231, 93396), (252, 85613), (258, 83622), (301, 71676), (308, 70047), (362, 59598), (387, 55748), (396, 54481), (462, 46698), (473, 45612), (516, 41811), (543, 39732), (602, 35838), (693, 31132), (724, 29799), (774, 27874), (903, 23892), (924, 23349), (946, 22806), (1086, 19866), (1204, 17919), (1267, 17028), (1386, 15566), (1419, 15204), (1548, 13937), (1629, 13244), (1806, 11946), (1892, 11403), (1991, 10836), (2172, 9933), (2534, 8514), (2709, 7964), (2772, 7783), (2838, 7602), (3258, 6622), (3311, 6516), (3612, 5973), (3801, 5676), (3982, 5418), (4257, 5068)]