21058938654

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1075643}}^1$

素因数の和:1075912

約数の個数: 32

約数和(自身を含む): 45538464384

約数和(自身を除く): 24479525730

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 251, 502, 753, 1506, 3263, 6526, 9789, 19578, 1075643, 2151286, 3226929, 6453858, 13983359, 27966718, 41950077, 83900154, 269986393, 539972786, 809959179, 1619918358, 3509823109, 7019646218, 10529469327, 21058938654]

約数ペア:

[(1, 21058938654), (2, 10529469327), (3, 7019646218), (6, 3509823109), (13, 1619918358), (26, 809959179), (39, 539972786), (78, 269986393), (251, 83900154), (502, 41950077), (753, 27966718), (1506, 13983359), (3263, 6453858), (6526, 3226929), (9789, 2151286), (19578, 1075643)]