20829984

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:382

約数の個数: 96

約数和(自身を含む): 63221760

約数和(自身を除く): 42391776

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 139, 168, 223, 224, 278, 336, 417, 446, 556, 669, 672, 834, 892, 973, 1112, 1338, 1561, 1668, 1784, 1946, 2224, 2676, 2919, 3122, 3336, 3568, 3892, 4448, 4683, 5352, 5838, 6244, 6672, 7136, 7784, 9366, 10704, 11676, 12488, 13344, 15568, 18732, 21408, 23352, 24976, 30997, 31136, 37464, 46704, 49952, 61994, 74928, 92991, 93408, 123988, 149856, 185982, 216979, 247976, 371964, 433958, 495952, 650937, 743928, 867916, 991904, 1301874, 1487856, 1735832, 2603748, 2975712, 3471664, 5207496, 6943328, 10414992, 20829984]

約数ペア:

[(1, 20829984), (2, 10414992), (3, 6943328), (4, 5207496), (6, 3471664), (7, 2975712), (8, 2603748), (12, 1735832), (14, 1487856), (16, 1301874), (21, 991904), (24, 867916), (28, 743928), (32, 650937), (42, 495952), (48, 433958), (56, 371964), (84, 247976), (96, 216979), (112, 185982), (139, 149856), (168, 123988), (223, 93408), (224, 92991), (278, 74928), (336, 61994), (417, 49952), (446, 46704), (556, 37464), (669, 31136), (672, 30997), (834, 24976), (892, 23352), (973, 21408), (1112, 18732), (1338, 15568), (1561, 13344), (1668, 12488), (1784, 11676), (1946, 10704), (2224, 9366), (2676, 7784), (2919, 7136), (3122, 6672), (3336, 6244), (3568, 5838), (3892, 5352), (4448, 4683)]