21791376

素因数分解:

$2^4\times 3^3\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:781

約数の個数: 80

約数和(自身を含む): 63497920

約数和(自身を除く): 41706544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 73, 108, 144, 146, 216, 219, 292, 432, 438, 584, 657, 691, 876, 1168, 1314, 1382, 1752, 1971, 2073, 2628, 2764, 3504, 3942, 4146, 5256, 5528, 6219, 7884, 8292, 10512, 11056, 12438, 15768, 16584, 18657, 24876, 31536, 33168, 37314, 49752, 50443, 74628, 99504, 100886, 149256, 151329, 201772, 298512, 302658, 403544, 453987, 605316, 807088, 907974, 1210632, 1361961, 1815948, 2421264, 2723922, 3631896, 5447844, 7263792, 10895688, 21791376]

約数ペア:

[(1, 21791376), (2, 10895688), (3, 7263792), (4, 5447844), (6, 3631896), (8, 2723922), (9, 2421264), (12, 1815948), (16, 1361961), (18, 1210632), (24, 907974), (27, 807088), (36, 605316), (48, 453987), (54, 403544), (72, 302658), (73, 298512), (108, 201772), (144, 151329), (146, 149256), (216, 100886), (219, 99504), (292, 74628), (432, 50443), (438, 49752), (584, 37314), (657, 33168), (691, 31536), (876, 24876), (1168, 18657), (1314, 16584), (1382, 15768), (1752, 12438), (1971, 11056), (2073, 10512), (2628, 8292), (2764, 7884), (3504, 6219), (3942, 5528), (4146, 5256)]