17809821

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 28080000

約数和(自身を除く): 10270179

約数列:

[1, 3, 9, 19, 27, 57, 149, 171, 233, 447, 513, 699, 1341, 2097, 2831, 4023, 4427, 6291, 8493, 13281, 25479, 34717, 39843, 76437, 104151, 119529, 312453, 659623, 937359, 1978869, 5936607, 17809821]

約数ペア:

[(1, 17809821), (3, 5936607), (9, 1978869), (19, 937359), (27, 659623), (57, 312453), (149, 119529), (171, 104151), (233, 76437), (447, 39843), (513, 34717), (699, 25479), (1341, 13281), (2097, 8493), (2831, 6291), (4023, 4427)]