647320641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{11939}}^1$

素因数の和:12037

約数の個数: 32

約数和(自身を含む): 990351360

約数和(自身を除く): 343030719

約数列:

[1, 3, 11, 31, 33, 53, 93, 159, 341, 583, 1023, 1643, 1749, 4929, 11939, 18073, 35817, 54219, 131329, 370109, 393987, 632767, 1110327, 1898301, 4071199, 6960437, 12213597, 19615777, 20881311, 58847331, 215773547, 647320641]

約数ペア:

[(1, 647320641), (3, 215773547), (11, 58847331), (31, 20881311), (33, 19615777), (53, 12213597), (93, 6960437), (159, 4071199), (341, 1898301), (583, 1110327), (1023, 632767), (1643, 393987), (1749, 370109), (4929, 131329), (11939, 54219), (18073, 35817)]