208545957

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 326851200

約数和(自身を除く): 118305243

約数列:

[1, 3, 9, 19, 57, 71, 89, 171, 193, 213, 267, 579, 639, 801, 1349, 1691, 1737, 3667, 4047, 5073, 6319, 11001, 12141, 13703, 15219, 17177, 18957, 33003, 41109, 51531, 56871, 120061, 123327, 154593, 260357, 326363, 360183, 781071, 979089, 1080549, 1219567, 2343213, 2937267, 3658701, 10976103, 23171773, 69515319, 208545957]

約数ペア:

[(1, 208545957), (3, 69515319), (9, 23171773), (19, 10976103), (57, 3658701), (71, 2937267), (89, 2343213), (171, 1219567), (193, 1080549), (213, 979089), (267, 781071), (579, 360183), (639, 326363), (801, 260357), (1349, 154593), (1691, 123327), (1737, 120061), (3667, 56871), (4047, 51531), (5073, 41109), (6319, 33003), (11001, 18957), (12141, 17177), (13703, 15219)]