643398678

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{2749567}}^1$

素因数の和:2749588

約数の個数: 24

約数和(自身を含む): 1501264128

約数和(自身を除く): 857865450

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 2749567, 5499134, 8248701, 16497402, 24746103, 35744371, 49492206, 71488742, 107233113, 214466226, 321699339, 643398678]

約数ペア:

[(1, 643398678), (2, 321699339), (3, 214466226), (6, 107233113), (9, 71488742), (13, 49492206), (18, 35744371), (26, 24746103), (39, 16497402), (78, 8248701), (117, 5499134), (234, 2749567)]