205121319

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 303953664

約数和(自身を除く): 98832345

約数列:

[1, 3, 13, 39, 41, 123, 163, 489, 533, 787, 1599, 2119, 2361, 6357, 6683, 10231, 20049, 30693, 32267, 86879, 96801, 128281, 260637, 384843, 419471, 1258413, 1667653, 5002959, 5259521, 15778563, 68373773, 205121319]

約数ペア:

[(1, 205121319), (3, 68373773), (13, 15778563), (39, 5259521), (41, 5002959), (123, 1667653), (163, 1258413), (489, 419471), (533, 384843), (787, 260637), (1599, 128281), (2119, 96801), (2361, 86879), (6357, 32267), (6683, 30693), (10231, 20049)]