20569395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1619}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20798925

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1619, 1815, 2541, 4235, 4857, 8095, 11333, 12705, 17809, 24285, 33999, 53427, 56665, 89045, 124663, 169995, 195899, 267135, 373989, 587697, 623315, 979495, 1371293, 1869945, 2938485, 4113879, 6856465, 20569395]

約数ペア:

[(1, 20569395), (3, 6856465), (5, 4113879), (7, 2938485), (11, 1869945), (15, 1371293), (21, 979495), (33, 623315), (35, 587697), (55, 373989), (77, 267135), (105, 195899), (121, 169995), (165, 124663), (231, 89045), (363, 56665), (385, 53427), (605, 33999), (847, 24285), (1155, 17809), (1619, 12705), (1815, 11333), (2541, 8095), (4235, 4857)]