21028672

素因数分解:

$2^6\times 7^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:735

約数の個数: 56

約数和(自身を含む): 48418496

約数和(自身を除く): 27389824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 146, 224, 292, 448, 511, 584, 643, 1022, 1168, 1286, 2044, 2336, 2572, 4088, 4501, 4672, 5144, 8176, 9002, 10288, 16352, 18004, 20576, 32704, 36008, 41152, 46939, 72016, 93878, 144032, 187756, 288064, 328573, 375512, 657146, 751024, 1314292, 1502048, 2628584, 3004096, 5257168, 10514336, 21028672]

約数ペア:

[(1, 21028672), (2, 10514336), (4, 5257168), (7, 3004096), (8, 2628584), (14, 1502048), (16, 1314292), (28, 751024), (32, 657146), (56, 375512), (64, 328573), (73, 288064), (112, 187756), (146, 144032), (224, 93878), (292, 72016), (448, 46939), (511, 41152), (584, 36008), (643, 32704), (1022, 20576), (1168, 18004), (1286, 16352), (2044, 10288), (2336, 9002), (2572, 8176), (4088, 5144), (4501, 4672)]