21407328

素因数分解:

$2^5\times 3^5\times {\mathrm{2753}}^1$

素因数の和:2778

約数の個数: 72

約数和(自身を含む): 63154728

約数和(自身を除く): 41747400

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2592, 2753, 3888, 5506, 7776, 8259, 11012, 16518, 22024, 24777, 33036, 44048, 49554, 66072, 74331, 88096, 99108, 132144, 148662, 198216, 222993, 264288, 297324, 396432, 445986, 594648, 668979, 792864, 891972, 1189296, 1337958, 1783944, 2378592, 2675916, 3567888, 5351832, 7135776, 10703664, 21407328]

約数ペア:

[(1, 21407328), (2, 10703664), (3, 7135776), (4, 5351832), (6, 3567888), (8, 2675916), (9, 2378592), (12, 1783944), (16, 1337958), (18, 1189296), (24, 891972), (27, 792864), (32, 668979), (36, 594648), (48, 445986), (54, 396432), (72, 297324), (81, 264288), (96, 222993), (108, 198216), (144, 148662), (162, 132144), (216, 99108), (243, 88096), (288, 74331), (324, 66072), (432, 49554), (486, 44048), (648, 33036), (864, 24777), (972, 22024), (1296, 16518), (1944, 11012), (2592, 8259), (2753, 7776), (3888, 5506)]