21494448

素因数分解:

$2^4\times 3^2\times {\mathrm{61}}^1\times {\mathrm{2447}}^1$

素因数の和:2522

約数の個数: 60

約数和(自身を含む): 61165728

約数和(自身を除く): 39671280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 61, 72, 122, 144, 183, 244, 366, 488, 549, 732, 976, 1098, 1464, 2196, 2447, 2928, 4392, 4894, 7341, 8784, 9788, 14682, 19576, 22023, 29364, 39152, 44046, 58728, 88092, 117456, 149267, 176184, 298534, 352368, 447801, 597068, 895602, 1194136, 1343403, 1791204, 2388272, 2686806, 3582408, 5373612, 7164816, 10747224, 21494448]

約数ペア:

[(1, 21494448), (2, 10747224), (3, 7164816), (4, 5373612), (6, 3582408), (8, 2686806), (9, 2388272), (12, 1791204), (16, 1343403), (18, 1194136), (24, 895602), (36, 597068), (48, 447801), (61, 352368), (72, 298534), (122, 176184), (144, 149267), (183, 117456), (244, 88092), (366, 58728), (488, 44046), (549, 39152), (732, 29364), (976, 22023), (1098, 19576), (1464, 14682), (2196, 9788), (2447, 8784), (2928, 7341), (4392, 4894)]