20784722

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1619}}^1$

素因数の和:1766

約数の個数: 24

約数和(自身を含む): 36566640

約数和(自身を除く): 15781918

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1619, 1834, 3238, 6419, 11333, 12838, 22666, 79331, 158662, 212089, 424178, 1484623, 2969246, 10392361, 20784722]

約数ペア:

[(1, 20784722), (2, 10392361), (7, 2969246), (14, 1484623), (49, 424178), (98, 212089), (131, 158662), (262, 79331), (917, 22666), (1619, 12838), (1834, 11333), (3238, 6419)]