21977568

素因数分解:

$2^5\times 3^4\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 120

約数和(自身を含む): 66167640

約数和(自身を除く): 44190072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 61, 72, 81, 96, 108, 122, 139, 144, 162, 183, 216, 244, 278, 288, 324, 366, 417, 432, 488, 549, 556, 648, 732, 834, 864, 976, 1098, 1112, 1251, 1296, 1464, 1647, 1668, 1952, 2196, 2224, 2502, 2592, 2928, 3294, 3336, 3753, 4392, 4448, 4941, 5004, 5856, 6588, 6672, 7506, 8479, 8784, 9882, 10008, 11259, 13176, 13344, 15012, 16958, 17568, 19764, 20016, 22518, 25437, 26352, 30024, 33916, 39528, 40032, 45036, 50874, 52704, 60048, 67832, 76311, 79056, 90072, 101748, 120096, 135664, 152622, 158112, 180144, 203496, 228933, 271328, 305244, 360288, 406992, 457866, 610488, 686799, 813984, 915732, 1220976, 1373598, 1831464, 2441952, 2747196, 3662928, 5494392, 7325856, 10988784, 21977568]

約数ペア:

[(1, 21977568), (2, 10988784), (3, 7325856), (4, 5494392), (6, 3662928), (8, 2747196), (9, 2441952), (12, 1831464), (16, 1373598), (18, 1220976), (24, 915732), (27, 813984), (32, 686799), (36, 610488), (48, 457866), (54, 406992), (61, 360288), (72, 305244), (81, 271328), (96, 228933), (108, 203496), (122, 180144), (139, 158112), (144, 152622), (162, 135664), (183, 120096), (216, 101748), (244, 90072), (278, 79056), (288, 76311), (324, 67832), (366, 60048), (417, 52704), (432, 50874), (488, 45036), (549, 40032), (556, 39528), (648, 33916), (732, 30024), (834, 26352), (864, 25437), (976, 22518), (1098, 20016), (1112, 19764), (1251, 17568), (1296, 16958), (1464, 15012), (1647, 13344), (1668, 13176), (1952, 11259), (2196, 10008), (2224, 9882), (2502, 8784), (2592, 8479), (2928, 7506), (3294, 6672), (3336, 6588), (3753, 5856), (4392, 5004), (4448, 4941)]