204900921

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4591}}^1$

素因数の和:4651

約数の個数: 40

約数和(自身を含む): 333379200

約数和(自身を除く): 128478279

約数列:

[1, 3, 9, 19, 27, 29, 57, 81, 87, 171, 261, 513, 551, 783, 1539, 1653, 2349, 4591, 4959, 13773, 14877, 41319, 44631, 87229, 123957, 133139, 261687, 371871, 399417, 785061, 1198251, 2355183, 2529641, 3594753, 7065549, 7588923, 10784259, 22766769, 68300307, 204900921]

約数ペア:

[(1, 204900921), (3, 68300307), (9, 22766769), (19, 10784259), (27, 7588923), (29, 7065549), (57, 3594753), (81, 2529641), (87, 2355183), (171, 1198251), (261, 785061), (513, 399417), (551, 371871), (783, 261687), (1539, 133139), (1653, 123957), (2349, 87229), (4591, 44631), (4959, 41319), (13773, 14877)]