21054384

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:216

約数の個数: 160

約数和(自身を含む): 68328960

約数和(自身を除く): 47274576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 27, 36, 39, 46, 48, 52, 54, 69, 72, 78, 92, 104, 108, 117, 138, 144, 156, 163, 184, 207, 208, 216, 234, 276, 299, 312, 326, 351, 368, 414, 432, 468, 489, 552, 598, 621, 624, 652, 702, 828, 897, 936, 978, 1104, 1196, 1242, 1304, 1404, 1467, 1656, 1794, 1872, 1956, 2119, 2392, 2484, 2608, 2691, 2808, 2934, 3312, 3588, 3749, 3912, 4238, 4401, 4784, 4968, 5382, 5616, 5868, 6357, 7176, 7498, 7824, 8073, 8476, 8802, 9936, 10764, 11247, 11736, 12714, 14352, 14996, 16146, 16952, 17604, 19071, 21528, 22494, 23472, 25428, 29992, 32292, 33741, 33904, 35208, 38142, 43056, 44988, 48737, 50856, 57213, 59984, 64584, 67482, 70416, 76284, 89976, 97474, 101223, 101712, 114426, 129168, 134964, 146211, 152568, 179952, 194948, 202446, 228852, 269928, 292422, 305136, 389896, 404892, 438633, 457704, 539856, 584844, 779792, 809784, 877266, 915408, 1169688, 1315899, 1619568, 1754532, 2339376, 2631798, 3509064, 5263596, 7018128, 10527192, 21054384]

約数ペア:

[(1, 21054384), (2, 10527192), (3, 7018128), (4, 5263596), (6, 3509064), (8, 2631798), (9, 2339376), (12, 1754532), (13, 1619568), (16, 1315899), (18, 1169688), (23, 915408), (24, 877266), (26, 809784), (27, 779792), (36, 584844), (39, 539856), (46, 457704), (48, 438633), (52, 404892), (54, 389896), (69, 305136), (72, 292422), (78, 269928), (92, 228852), (104, 202446), (108, 194948), (117, 179952), (138, 152568), (144, 146211), (156, 134964), (163, 129168), (184, 114426), (207, 101712), (208, 101223), (216, 97474), (234, 89976), (276, 76284), (299, 70416), (312, 67482), (326, 64584), (351, 59984), (368, 57213), (414, 50856), (432, 48737), (468, 44988), (489, 43056), (552, 38142), (598, 35208), (621, 33904), (624, 33741), (652, 32292), (702, 29992), (828, 25428), (897, 23472), (936, 22494), (978, 21528), (1104, 19071), (1196, 17604), (1242, 16952), (1304, 16146), (1404, 14996), (1467, 14352), (1656, 12714), (1794, 11736), (1872, 11247), (1956, 10764), (2119, 9936), (2392, 8802), (2484, 8476), (2608, 8073), (2691, 7824), (2808, 7498), (2934, 7176), (3312, 6357), (3588, 5868), (3749, 5616), (3912, 5382), (4238, 4968), (4401, 4784)]