20697984

素因数分解:

$2^7\times 3^3\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 62791200

約数和(自身を除く): 42093216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 53, 54, 64, 72, 96, 106, 108, 113, 128, 144, 159, 192, 212, 216, 226, 288, 318, 339, 384, 424, 432, 452, 477, 576, 636, 678, 848, 864, 904, 954, 1017, 1152, 1272, 1356, 1431, 1696, 1728, 1808, 1908, 2034, 2544, 2712, 2862, 3051, 3392, 3456, 3616, 3816, 4068, 5088, 5424, 5724, 5989, 6102, 6784, 7232, 7632, 8136, 10176, 10848, 11448, 11978, 12204, 14464, 15264, 16272, 17967, 20352, 21696, 22896, 23956, 24408, 30528, 32544, 35934, 43392, 45792, 47912, 48816, 53901, 61056, 65088, 71868, 91584, 95824, 97632, 107802, 130176, 143736, 161703, 183168, 191648, 195264, 215604, 287472, 323406, 383296, 390528, 431208, 574944, 646812, 766592, 862416, 1149888, 1293624, 1724832, 2299776, 2587248, 3449664, 5174496, 6899328, 10348992, 20697984]

約数ペア:

[(1, 20697984), (2, 10348992), (3, 6899328), (4, 5174496), (6, 3449664), (8, 2587248), (9, 2299776), (12, 1724832), (16, 1293624), (18, 1149888), (24, 862416), (27, 766592), (32, 646812), (36, 574944), (48, 431208), (53, 390528), (54, 383296), (64, 323406), (72, 287472), (96, 215604), (106, 195264), (108, 191648), (113, 183168), (128, 161703), (144, 143736), (159, 130176), (192, 107802), (212, 97632), (216, 95824), (226, 91584), (288, 71868), (318, 65088), (339, 61056), (384, 53901), (424, 48816), (432, 47912), (452, 45792), (477, 43392), (576, 35934), (636, 32544), (678, 30528), (848, 24408), (864, 23956), (904, 22896), (954, 21696), (1017, 20352), (1152, 17967), (1272, 16272), (1356, 15264), (1431, 14464), (1696, 12204), (1728, 11978), (1808, 11448), (1908, 10848), (2034, 10176), (2544, 8136), (2712, 7632), (2862, 7232), (3051, 6784), (3392, 6102), (3456, 5989), (3616, 5724), (3816, 5424), (4068, 5088)]