20745758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1664

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 16164322

約数列:

[1, 2, 11, 19, 22, 31, 38, 62, 209, 341, 418, 589, 682, 1178, 1601, 3202, 6479, 12958, 17611, 30419, 35222, 49631, 60838, 99262, 334609, 545941, 669218, 942989, 1091882, 1885978, 10372879, 20745758]

約数ペア:

[(1, 20745758), (2, 10372879), (11, 1885978), (19, 1091882), (22, 942989), (31, 669218), (38, 545941), (62, 334609), (209, 99262), (341, 60838), (418, 49631), (589, 35222), (682, 30419), (1178, 17611), (1601, 12958), (3202, 6479)]