21393648

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 63835200

約数和(自身を除く): 42441552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 47, 48, 58, 72, 87, 94, 109, 116, 141, 144, 174, 188, 218, 232, 261, 282, 327, 348, 376, 423, 436, 464, 522, 564, 654, 696, 752, 846, 872, 981, 1044, 1128, 1308, 1363, 1392, 1692, 1744, 1962, 2088, 2256, 2616, 2726, 3161, 3384, 3924, 4089, 4176, 5123, 5232, 5452, 6322, 6768, 7848, 8178, 9483, 10246, 10904, 12267, 12644, 15369, 15696, 16356, 18966, 20492, 21808, 24534, 25288, 28449, 30738, 32712, 37932, 40984, 46107, 49068, 50576, 56898, 61476, 65424, 75864, 81968, 92214, 98136, 113796, 122952, 148567, 151728, 184428, 196272, 227592, 245904, 297134, 368856, 445701, 455184, 594268, 737712, 891402, 1188536, 1337103, 1782804, 2377072, 2674206, 3565608, 5348412, 7131216, 10696824, 21393648]

約数ペア:

[(1, 21393648), (2, 10696824), (3, 7131216), (4, 5348412), (6, 3565608), (8, 2674206), (9, 2377072), (12, 1782804), (16, 1337103), (18, 1188536), (24, 891402), (29, 737712), (36, 594268), (47, 455184), (48, 445701), (58, 368856), (72, 297134), (87, 245904), (94, 227592), (109, 196272), (116, 184428), (141, 151728), (144, 148567), (174, 122952), (188, 113796), (218, 98136), (232, 92214), (261, 81968), (282, 75864), (327, 65424), (348, 61476), (376, 56898), (423, 50576), (436, 49068), (464, 46107), (522, 40984), (564, 37932), (654, 32712), (696, 30738), (752, 28449), (846, 25288), (872, 24534), (981, 21808), (1044, 20492), (1128, 18966), (1308, 16356), (1363, 15696), (1392, 15369), (1692, 12644), (1744, 12267), (1962, 10904), (2088, 10246), (2256, 9483), (2616, 8178), (2726, 7848), (3161, 6768), (3384, 6322), (3924, 5452), (4089, 5232), (4176, 5123)]